Sn–Tb phases

13 phases (tier A 7, tier C 4, liquid 1, needs_review 1); 11 stable in a calculated diagram. Structure types are assigned only when the stored evidence supports an assignment under the stated tier rules (tier A: standard phase name; tier B: unique Materials Project + OQMD on-hull match, DFT-supported; tier C: one structure stated by the assessment's crystallographic table, assessor-stated); other phases list candidates and are marked needs_review. Stability is from phase diagrams calculated with pycalphad from the SGTE binary collection (evidence class: model).

Data: interactive registry · full JSON · Sn–Tb system page · Markdown · field reference

Phases of the Sn–Tb system (13)
Phase	Structure	Basis	Stability (calculated)	TDB models
DIAMOND_A4 phase:sn-tb:a4-diamond	C (diamond) · A4 · cF8 · Fd-3m (227)	tier A: standard phase name	not stable in 1 calculated diagram(s)	1
BCT_A5 phase:sn-tb:a5-bct	beta-Sn · A5 · tI4 · I4_1/amd (141)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–504.97 K, x(Tb) 0–0	1
BCC_A2 phase:sn-tb:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 1397–2499.52 K, x(Tb) 1–1	1
FCC_A1 phase:sn-tb:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	not stable in 1 calculated diagram(s)	1
HCP_A3 phase:sn-tb:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1562.01 K, x(Tb) 1–1	1
LIQUID phase:sn-tb:liquid	liquid	liquid	stable in 1 of 1 calculated diagram(s): 504.97–2500 K, x(Tb) 0–1	1
SN10TB11 phase:sn-tb:sn10tb11	Ge10Ho11 · tI84 · I4/mmm (139)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1864 K, x(Tb) 0.52381–0.52381	1
SN2TB_C49 phase:sn-tb:sn2tb-c49	ZrSi2 · C49 · oC12 · Cmcm (63)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–1422.85 K, x(Tb) 0.33333–0.33333	1
SN3TB phase:sn-tb:sn3tb		needs_review	stable in 1 of 1 calculated diagram(s): 300–723.22 K, x(Tb) 0.25–0.25	1
SN3TB5_D88 phase:sn-tb:sn3tb5-d88	Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–2122.63 K, x(Tb) 0.625–0.625	1
SN4TB5 phase:sn-tb:sn4tb5	Ge4Sm5 · oP36 · Pnma (62)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1982.63 K, x(Tb) 0.55556–0.55556	1
SN7TB3_HT phase:sn-tb:sn7tb3-ht	Sn7Tb3-ht · oP24 · Pmmm (47)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 1017.7–1105.46 K, x(Tb) 0.3–0.3	1
SN7TB3_LT phase:sn-tb:sn7tb3-lt	Sn7Tb3-lt · oC28 · Cmmm (65)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–1017.7 K, x(Tb) 0.3–0.3	1

DIAMOND_A4 (Sn–Tb)

Id: phase:sn-tb:a4-diamond; status assigned
Structure: C (diamond) · A4 · cF8 · Fd-3m (227); type st:a4-c-diamond-cf8; tier A: standard phase name; confidence high
Stoichiometry: Sn 1.0000
Stability: not stable in 1 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:sn-tb:a4-diamond
tdb: tdb:SnTb-18Wan.tdb:DIAMOND_A4

TDB models of DIAMOND_A4 (1): PHASE and CONSTITUENT statements as written

SnTb-18Wan.tdb: DIAMOND_A4, type code %, sha256 97fa50ca7f6feb71…

43: PHASE DIAMOND_A4 % 1 1 !
44: CONST DIAMOND_A4 : SN : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2017.12.009 S.L. Wang, X.H. Su, S.S. Li, C.Y. Fu, Y.H. Guo, Y.X. Huang, D.X. Xiang, C.P. Wang, X.J. Liu, Calphad, 60, 214-21(2018).
assessment that models this phase

BCT_A5 (Sn–Tb)

Id: phase:sn-tb:a5-bct; status assigned
Structure: beta-Sn · A5 · tI4 · I4_1/amd (141); type st:a5-beta-sn-ti4; tier A: standard phase name; confidence high
Stoichiometry: Sn 1.0000
Stability: stable in 1 of 1 calculated diagram(s): 300–504.97 K, x(Tb) 0–0
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:sn-tb:a5-bct
tdb: tdb:SnTb-18Wan.tdb:BCT_A5

TDB models of BCT_A5 (1): PHASE and CONSTITUENT statements as written

SnTb-18Wan.tdb: BCT_A5, type code %, sha256 97fa50ca7f6feb71…

48: PHASE BCT_A5 % 1 1 !
49: CONST BCT_A5 : SN : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2017.12.009 S.L. Wang, X.H. Su, S.S. Li, C.Y. Fu, Y.H. Guo, Y.X. Huang, D.X. Xiang, C.P. Wang, X.J. Liu, Calphad, 60, 214-21(2018).
assessment that models this phase

BCC_A2 (Sn–Tb)

Id: phase:sn-tb:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; tier A: standard phase name; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 1397–2499.52 K, x(Tb) 1–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:sn-tb:bcc-a2
tdb: tdb:SnTb-18Wan.tdb:BCC_A2

TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written

SnTb-18Wan.tdb: BCC_A2, type code %B, sha256 97fa50ca7f6feb71…

33: PHASE BCC_A2 %B 2 1 3 !
34: CONST BCC_A2 : SN TB% : VA : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2017.12.009 S.L. Wang, X.H. Su, S.S. Li, C.Y. Fu, Y.H. Guo, Y.X. Huang, D.X. Xiang, C.P. Wang, X.J. Liu, Calphad, 60, 214-21(2018).
assessment that models this phase

FCC_A1 (Sn–Tb)

Id: phase:sn-tb:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stoichiometry: Sn 1.0000
Stability: not stable in 1 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:sn-tb:fcc-a1
tdb: tdb:SnTb-18Wan.tdb:FCC_A1

TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written

SnTb-18Wan.tdb: FCC_A1, type code %A, sha256 97fa50ca7f6feb71…

28: PHASE FCC_A1 %A 2 1 1 !
29: CONST FCC_A1 : SN : VA : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2017.12.009 S.L. Wang, X.H. Su, S.S. Li, C.Y. Fu, Y.H. Guo, Y.X. Huang, D.X. Xiang, C.P. Wang, X.J. Liu, Calphad, 60, 214-21(2018).
assessment that models this phase

HCP_A3 (Sn–Tb)

Id: phase:sn-tb:hcp-a3; status assigned
Structure: Mg · A3 · hP2 · P6_3/mmc (194); type st:a3-mg-hp2; tier A: standard phase name; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 300–1562.01 K, x(Tb) 1–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:sn-tb:hcp-a3
tdb: tdb:SnTb-18Wan.tdb:HCP_A3

TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written

SnTb-18Wan.tdb: HCP_A3, type code %A, sha256 97fa50ca7f6feb71…

38: PHASE HCP_A3 %A 2 1 0.5 !
39: CONST HCP_A3 : SN TB% : VA : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2017.12.009 S.L. Wang, X.H. Su, S.S. Li, C.Y. Fu, Y.H. Guo, Y.X. Huang, D.X. Xiang, C.P. Wang, X.J. Liu, Calphad, 60, 214-21(2018).
assessment that models this phase

LIQUID (Sn–Tb)

Id: phase:sn-tb:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 504.97–2500 K, x(Tb) 0–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:sn-tb:liquid
tdb: tdb:SnTb-18Wan.tdb:LIQUID

TDB models of LIQUID (1): PHASE and CONSTITUENT statements as written

SnTb-18Wan.tdb: LIQUID, type code %, sha256 97fa50ca7f6feb71…

23: PHASE LIQUID:L % 1 1 !
24: CONST LIQUID:L : SN TB : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2017.12.009 S.L. Wang, X.H. Su, S.S. Li, C.Y. Fu, Y.H. Guo, Y.X. Huang, D.X. Xiang, C.P. Wang, X.J. Liu, Calphad, 60, 214-21(2018).
assessment that models this phase

SN10TB11 (Sn–Tb)

Id: phase:sn-tb:sn10tb11; status assigned
Structure: Ge10Ho11 · tI84 · I4/mmm (139); type st:ge10ho11-ti84; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (no_on_hull_entry_in_oqmd, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Sn 0.4762, Tb 0.5238
Stability: stable in 1 of 1 calculated diagram(s): 300–1864 K, x(Tb) 0.52381–0.52381
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:sn-tb:sn10tb11
tdb: tdb:SnTb-18Wan.tdb:SN10TB11

TDB models of SN10TB11 (1): PHASE and CONSTITUENT statements as written

SnTb-18Wan.tdb: SN10TB11, type code %, sha256 97fa50ca7f6feb71…

73: PHASE SN10TB11 % 2 10 11 !
74: CONST SN10TB11 : SN : TB : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2017.12.009 S.L. Wang, X.H. Su, S.S. Li, C.Y. Fu, Y.H. Guo, Y.X. Huang, D.X. Xiang, C.P. Wang, X.J. Liu, Calphad, 60, 214-21(2018).
assessment that models this phase

SN2TB_C49 (Sn–Tb)

Id: phase:sn-tb:sn2tb-c49; status assigned
Structure: ZrSi2 · C49 · oC12 · Cmcm (63); type st:c49-zrsi2-oc12; tier A: standard phase name; confidence high
Caveat: DFT agrees: on-hull mp-aaacjbeg and oqmd-21413, space group 63
Stoichiometry: Sn 0.6667, Tb 0.3333
Stability: stable in 1 of 1 calculated diagram(s): 300–1422.85 K, x(Tb) 0.33333–0.33333
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:sn-tb:sn2tb-c49
mp: mp:mp-aaacjbeg
oqmd: oqmd:oqmd-21413
tdb: tdb:SnTb-18Wan.tdb:SN2TB_C49

TDB models of SN2TB_C49 (1): PHASE and CONSTITUENT statements as written

SnTb-18Wan.tdb: SN2TB_C49, type code %, sha256 97fa50ca7f6feb71…

68: PHASE SN2TB_C49 % 2 2 1 !
69: CONST SN2TB_C49 : SN : TB : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2017.12.009 S.L. Wang, X.H. Su, S.S. Li, C.Y. Fu, Y.H. Guo, Y.X. Huang, D.X. Xiang, C.P. Wang, X.J. Liu, Calphad, 60, 214-21(2018).
assessment that models this phase

SN3TB (Sn–Tb)

Id: phase:sn-tb:sn3tb; status needs_review
No structure assigned. Why: no_on_hull_entry_in_both; no_structure_token; sgte_mmc2_rows_disagree
Candidate (sgte_mmc2): GdSn2.75 · oC16 · Amm2 (38) — Hallstedt 2025 mmc2 row for SN3TB: Sn3Tb (see also AuCu3)
Candidate (sgte_mmc2): AuCu3 · L1_2 · cP4 · Pm-3m (221) — Hallstedt 2025 mmc2 row for SN3TB: Sn3Tb (see also GdSn2.75)
Candidate (tdb_comment): AuCu3 · cP4 · Pm-3m — SnTb-18Wan.tdb: 'Prototype AuCu3 (cP4, Pm-3m) and GdSn2.75 (oC16, Amm2)'
Stoichiometry: Sn 0.7500, Tb 0.2500
Stability: stable in 1 of 1 calculated diagram(s): 300–723.22 K, x(Tb) 0.25–0.25
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:sn-tb:sn3tb
tdb: tdb:SnTb-18Wan.tdb:SN3TB

TDB models of SN3TB (1): PHASE and CONSTITUENT statements as written

SnTb-18Wan.tdb: SN3TB, type code %, sha256 97fa50ca7f6feb71…

53: PHASE SN3TB % 2 3 1 !
54: CONST SN3TB : SN : TB : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2017.12.009 S.L. Wang, X.H. Su, S.S. Li, C.Y. Fu, Y.H. Guo, Y.X. Huang, D.X. Xiang, C.P. Wang, X.J. Liu, Calphad, 60, 214-21(2018).
assessment that models this phase

SN3TB5_D88 (Sn–Tb)

Id: phase:sn-tb:sn3tb5-d88; status assigned
Structure: Mn5Si3 · D8_8 · hP16 · P6_3/mcm (193); type st:d8-8-mn5si3-hp16; tier A: standard phase name; confidence high
Stoichiometry: Sn 0.3750, Tb 0.6250
Stability: stable in 1 of 1 calculated diagram(s): 300–2122.63 K, x(Tb) 0.625–0.625
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:sn-tb:sn3tb5-d88
tdb: tdb:SnTb-18Wan.tdb:SN3TB5_D88

TDB models of SN3TB5_D88 (1): PHASE and CONSTITUENT statements as written

SnTb-18Wan.tdb: SN3TB5_D88, type code %, sha256 97fa50ca7f6feb71…

83: PHASE SN3TB5_D88 % 2 3 5 !
84: CONST SN3TB5_D88 : SN : TB : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2017.12.009 S.L. Wang, X.H. Su, S.S. Li, C.Y. Fu, Y.H. Guo, Y.X. Huang, D.X. Xiang, C.P. Wang, X.J. Liu, Calphad, 60, 214-21(2018).
assessment that models this phase

SN4TB5 (Sn–Tb)

Id: phase:sn-tb:sn4tb5; status assigned
Structure: Ge4Sm5 · oP36 · Pnma (62); type st:ge4sm5-op36; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (dft_space_group_62_matches_2_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Sn 0.4444, Tb 0.5556
Stability: stable in 1 of 1 calculated diagram(s): 300–1982.63 K, x(Tb) 0.55556–0.55556
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:sn-tb:sn4tb5
tdb: tdb:SnTb-18Wan.tdb:SN4TB5

TDB models of SN4TB5 (1): PHASE and CONSTITUENT statements as written

SnTb-18Wan.tdb: SN4TB5, type code %, sha256 97fa50ca7f6feb71…

78: PHASE SN4TB5 % 2 4 5 !
79: CONST SN4TB5 : SN : TB : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2017.12.009 S.L. Wang, X.H. Su, S.S. Li, C.Y. Fu, Y.H. Guo, Y.X. Huang, D.X. Xiang, C.P. Wang, X.J. Liu, Calphad, 60, 214-21(2018).
assessment that models this phase

SN7TB3_HT (Sn–Tb)

Id: phase:sn-tb:sn7tb3-ht; status assigned
Structure: Sn7Tb3-ht · oP24 · Pmmm (47); type st:sn7tb3-ht-op24; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (no_structure_token, polymorph_family:other phases of this system have the same composition); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Sn 0.7000, Tb 0.3000
Stability: stable in 1 of 1 calculated diagram(s): 1017.7–1105.46 K, x(Tb) 0.3–0.3
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:sn-tb:sn7tb3-ht
tdb: tdb:SnTb-18Wan.tdb:SN7TB3_HT

TDB models of SN7TB3_HT (1): PHASE and CONSTITUENT statements as written

SnTb-18Wan.tdb: SN7TB3_HT, type code %, sha256 97fa50ca7f6feb71…

63: PHASE SN7TB3_HT % 2 7 3 !
64: CONST SN7TB3_HT : SN : TB : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2017.12.009 S.L. Wang, X.H. Su, S.S. Li, C.Y. Fu, Y.H. Guo, Y.X. Huang, D.X. Xiang, C.P. Wang, X.J. Liu, Calphad, 60, 214-21(2018).
assessment that models this phase

SN7TB3_LT (Sn–Tb)

Id: phase:sn-tb:sn7tb3-lt; status assigned
Structure: Sn7Tb3-lt · oC28 · Cmmm (65); type st:sn7tb3-lt-oc28; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (no_structure_token, polymorph_family:other phases of this system have the same composition); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Sn 0.7000, Tb 0.3000
Stability: stable in 1 of 1 calculated diagram(s): 300–1017.7 K, x(Tb) 0.3–0.3
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:sn-tb:sn7tb3-lt
tdb: tdb:SnTb-18Wan.tdb:SN7TB3_LT

TDB models of SN7TB3_LT (1): PHASE and CONSTITUENT statements as written

SnTb-18Wan.tdb: SN7TB3_LT, type code %, sha256 97fa50ca7f6feb71…

58: PHASE SN7TB3_LT % 2 7 3 !
59: CONST SN7TB3_LT : SN : TB : !

Example references (1 of 1; assessments first):

doi:10.1016/j.calphad.2017.12.009 S.L. Wang, X.H. Su, S.S. Li, C.Y. Fu, Y.H. Guo, Y.X. Huang, D.X. Xiang, C.P. Wang, X.J. Liu, Calphad, 60, 214-21(2018).
assessment that models this phase

Please cite

R. Arróyave, J. Saal, D. Shin, ORCHID-Registry: phase registry of binary systems (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23735970
R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23736065

Also cite B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file; A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0); the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work). Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.

@misc{orchid_phase_registry_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Registry: phase registry of binary systems}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735970},
  url       = {https://doi.org/10.5281/zenodo.23735970},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_data_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23736065},
  url       = {https://doi.org/10.5281/zenodo.23736065},
  note      = {Version 1, machine-extracted}
}