Triple

T21951556

Position	Surface form	Disambiguated ID	Type / Status
Subject	Metro-Cammell	`E542081`	entity
Predicate	notableWork	`P4`	FINISHED
Object	British Rail Class 320	`—`	NE NERFINISHED

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: British Rail Class 320 | Statement: [Metro-Cammell, notableWork, British Rail Class 320]

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

Target entity: British Rail Class 320
Context triple: [Metro-Cammell, notableWork, British Rail Class 320]

A. British Rail Class 325
The British Rail Class 325 is an electric multiple unit train type designed specifically for high-speed postal and parcel services on the UK rail network.
B. British Rail Class 220
The British Rail Class 220 is a high-speed diesel-electric multiple unit train used in the UK for intercity services, known as part of the Voyager family built by Bombardier.
C. British Rail Class 390
The British Rail Class 390 is a high-speed tilting electric multiple unit train used by Avanti West Coast on the West Coast Main Line in the United Kingdom.
D. British Rail Class 350
The British Rail Class 350 is a family of electric multiple-unit passenger trains used for regional and intercity services on the UK rail network.
E. British Rail Class 375
The British Rail Class 375 is a fleet of electric multiple-unit passenger trains operated by Southeastern on suburban and regional services in southeast England.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: British Rail Class 320
Target entity description: The British Rail Class 320 is a type of electric multiple unit train used primarily for suburban passenger services in the Strathclyde region of Scotland.

A. British Rail Class 325
The British Rail Class 325 is an electric multiple unit train type designed specifically for high-speed postal and parcel services on the UK rail network.
B. British Rail Class 220
The British Rail Class 220 is a high-speed diesel-electric multiple unit train used in the UK for intercity services, known as part of the Voyager family built by Bombardier.
C. British Rail Class 390
The British Rail Class 390 is a high-speed tilting electric multiple unit train used by Avanti West Coast on the West Coast Main Line in the United Kingdom.
D. British Rail Class 350
The British Rail Class 350 is a family of electric multiple-unit passenger trains used for regional and intercity services on the UK rail network.
E. British Rail Class 375
The British Rail Class 375 is a fleet of electric multiple-unit passenger trains operated by Southeastern on suburban and regional services in southeast England.
F. None of above. chosen

Provenance (2 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_69e0c47ef0e48190a50e1bcc43f4b3fd`	completed	April 16, 2026, 11:14 a.m.
NER	Named-entity recognition	`batch_69f1243c84d4819097f5a93b128f024b`	completed	April 28, 2026, 9:18 p.m.

Created at: April 16, 2026, 7:58 p.m.