Triple

T1049668

Position	Surface form	Disambiguated ID	Type / Status
Subject	Virgin CrossCountry	`E22664`	entity
Predicate	predecessorInfrastructureOwner	`P23579`	FINISHED
Object	Railtrack	`E43444`	NE FINISHED

How this triple was built (3 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 | Statement: [Virgin CrossCountry, predecessorInfrastructureOwner, Railtrack]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Railtrack
Context triple: [Virgin CrossCountry, predecessorInfrastructureOwner, Railtrack]

A. 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.
B. 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.
C. Network Rail
Network Rail is the owner and infrastructure manager of most of the railway network in Great Britain, responsible for tracks, signals, major stations, and related assets.
D. Borders Railway
Borders Railway is a Scottish rail line that reconnects Edinburgh with the Scottish Borders and Midlothian, serving as one of the longest new domestic railway lines built in the UK in recent decades.
E. Northern Rail
Northern Rail is a British train operating company providing 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.

PD Predicate disambiguation gpt-5-mini-2025-08-07

Target predicate: predecessorInfrastructureOwner
Context triple: [Virgin CrossCountry, predecessorInfrastructureOwner, Railtrack]

A. predecessorName
Indicates that the value is the name of an entity that directly precedes another in an ordered sequence or lineage.
B. predecessor
Indicates that one entity comes before another in an ordered sequence or succession.
C. predecessorCEO
Indicates that one person previously held the position of CEO before another specific person.
D. predecessorInRole
Indicates that one entity previously held a particular role or position that was later occupied by another entity.
E. previousAdministrator
Indicates that one entity formerly held an administrative role or position over another entity before the current administrator.
F. None of above. chosen

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_69a493da02e081908c13ff5e02a0fe7a`	completed	March 1, 2026, 7:30 p.m.
NER	Named-entity recognition	`batch_69a4b8b2c6208190b6fdf3e93b1b1d04`	completed	March 1, 2026, 10:07 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69ac763827b08190b84cc18a5cfa64fc`	completed	March 7, 2026, 7:02 p.m.
PD	Predicate disambiguation	`batch_69a4b7309cc481908ed839b0b8d75dbf`	completed	March 1, 2026, 10:01 p.m.
PDg	Predicate description generation	`batch_69a4b7f2d1b081908eb2df54e91c8c1d`	completed	March 1, 2026, 10:04 p.m.

Created at: March 1, 2026, 7:42 p.m.