Triple
T13301491
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | NI Railways |
E316821
|
entity |
| Predicate | subsidiaryOf |
P254
|
FINISHED |
| Object | Northern Ireland Transport Holding Company |
E400046
|
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: Northern Ireland Transport Holding Company | Statement: [NI Railways, subsidiaryOf, Northern Ireland Transport Holding Company]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Northern Ireland Transport Holding Company Context triple: [NI Railways, subsidiaryOf, Northern Ireland Transport Holding Company]
-
A.
Ulster Transport Authority
chosen
The Ulster Transport Authority was a government-owned body responsible for operating and overseeing public transport services, including railways and buses, in Northern Ireland from the late 1940s until the late 1960s.
-
B.
Iarnród Éireann
Iarnród Éireann is the national railway operator of Ireland, responsible for most passenger and freight rail services across the country.
-
C.
Dublin Port Company
Dublin Port Company is the state-owned commercial entity responsible for managing and developing Dublin Port, Ireland’s principal cargo and passenger seaport.
-
D.
Belfast Corporation
Belfast Corporation was the former municipal governing body responsible for administering the city of Belfast, Northern Ireland, before being succeeded by Belfast City Council.
-
E.
Arriva Trains Northern
Arriva Trains Northern was a former British train operating company that provided regional and commuter rail services across Northern England.
- 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_69d806b40ab4819094adf6c374f4811a |
completed | April 9, 2026, 8:06 p.m. |
| NER | Named-entity recognition | batch_69d990a43ed88190a8dbbbd7d6d62dc4 |
completed | April 11, 2026, 12:07 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f716df8c2c8190bd17b47848546271 |
completed | May 3, 2026, 9:35 a.m. |
Created at: April 9, 2026, 9:28 p.m.