Triple
T1999939
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Railtrack |
E43444
|
entity |
| Predicate | parentCompany |
P254
|
FINISHED |
| Object | Railtrack Group |
E43444
|
NE FINISHED |
How this triple was built (2 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: Railtrack Group | Statement: [Railtrack, parentCompany, Railtrack Group]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Railtrack Group Context triple: [Railtrack, parentCompany, Railtrack Group]
-
A.
Rail Delivery Group
Rail Delivery Group is the industry body that represents and coordinates Britain’s passenger and freight train operators and Network Rail, working to improve and manage the national rail system.
-
B.
Railtrack
chosen
Railtrack was the former private owner and operator of most of Britain’s railway infrastructure, which was later replaced by the publicly owned Network Rail after financial and safety controversies.
-
C.
Serco Caledonian Sleepers Limited
Serco Caledonian Sleepers Limited is a UK-based rail company that operates overnight sleeper train services between London and Scotland under the Caledonian Sleeper brand.
-
D.
British Rail
British Rail was the state-owned company that operated most of the railway services in Great Britain from the late 1940s until the privatization of the rail network in the 1990s.
-
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.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69a88715dbbc8190b2299e29e955d997 |
completed | March 4, 2026, 7:25 p.m. |
| NER | Named-entity recognition | batch_69abb87f78f0819098e787a5f3e062fd |
completed | March 7, 2026, 5:32 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ae0ada17608190867681ee14aa217e |
completed | March 8, 2026, 11:48 p.m. |
Created at: March 4, 2026, 7:37 p.m.