Triple
T18616250
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Corus Group |
E455027
|
entity |
| Predicate | hasSubsidiary |
P254
|
FINISHED |
| Object |
Corus Rail
Corus Rail was the rail products and services division of Corus Group, supplying steel rails and related infrastructure to the railway industry.
|
E455027
|
NE FINISHED |
How this triple was built (4 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Corus Rail | Statement: [Corus Group, hasSubsidiary, Corus Rail]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Corus Rail Context triple: [Corus Group, hasSubsidiary, Corus Rail]
-
A.
Corus Group
Corus Group was a major British-Dutch steel company formed from the merger of British Steel and Koninklijke Hoogovens, later acquired by Tata Steel.
-
B.
Dofasco
Dofasco is a major Canadian steel manufacturer based in Hamilton, Ontario, long recognized as one of the city’s most prominent industrial employers.
-
C.
Union Steel
Union Steel was an American steel company historically associated with industrialist and financier Andrew W. Mellon.
-
D.
Stelco
Stelco is a major Canadian steel manufacturing company historically central to the industrial and economic identity of Hamilton, Ontario.
-
E.
Hitachi Rail
Hitachi Rail is a global rail transport and engineering company that designs, manufactures, and maintains trains and railway systems for urban, intercity, and high-speed networks.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Corus Rail Triple: [Corus Group, hasSubsidiary, Corus Rail]
Generated description
Corus Rail was the rail products and services division of Corus Group, supplying steel rails and related infrastructure to the railway industry.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Corus Rail Target entity description: Corus Rail was the rail products and services division of Corus Group, supplying steel rails and related infrastructure to the railway industry.
-
A.
Corus Group
chosen
Corus Group was a major British-Dutch steel company formed from the merger of British Steel and Koninklijke Hoogovens, later acquired by Tata Steel.
-
B.
Dofasco
Dofasco is a major Canadian steel manufacturer based in Hamilton, Ontario, long recognized as one of the city’s most prominent industrial employers.
-
C.
Union Steel
Union Steel was an American steel company historically associated with industrialist and financier Andrew W. Mellon.
-
D.
Stelco
Stelco is a major Canadian steel manufacturing company historically central to the industrial and economic identity of Hamilton, Ontario.
-
E.
Hitachi Rail
Hitachi Rail is a global rail transport and engineering company that designs, manufactures, and maintains trains and railway systems for urban, intercity, and high-speed networks.
- F. None of above.
Provenance (5 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69d8d38bbe7c8190bdec3138e7d413c9 |
completed | April 10, 2026, 10:40 a.m. |
| NER | Named-entity recognition | batch_69e54d05da9c8190b8f4ef3a7a6deb05 |
completed | April 19, 2026, 9:45 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a05038e7a208190aa015e9241822195 |
completed | May 13, 2026, 11:04 p.m. |
| NEDg | Description generation | batch_6a0505f288648190bfc8c9e158824767 |
completed | May 13, 2026, 11:14 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a0506e170708190a34edb98447f725c |
completed | May 13, 2026, 11:18 p.m. |
Created at: April 10, 2026, 11:46 a.m.