Triple

T35692241

Position	Surface form	Disambiguated ID	Type / Status
Subject	New Brighton branch of the Wirral Line	`E1031325`	entity
Predicate	usesRollingStock	`P5426`	FINISHED
Object	Merseyrail Class 507 EMU The Merseyrail Class 507 EMU is a fleet of electric multiple-unit trains built in the late 1970s for Merseyside’s urban rail network, operating primarily on Merseyrail’s third-rail electrified lines.	`E2152057`	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: Merseyrail Class 507 EMU | Statement: [New Brighton branch of the Wirral Line, usesRollingStock, Merseyrail Class 507 EMU]

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: Merseyrail Class 507 EMU
Triple: [New Brighton branch of the Wirral Line, usesRollingStock, Merseyrail Class 507 EMU]

Generated description

The Merseyrail Class 507 EMU is a fleet of electric multiple-unit trains built in the late 1970s for Merseyside’s urban rail network, operating primarily on Merseyrail’s third-rail electrified lines.

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_69f76e0c73ec819080ab60a9e2f5f1f6`	completed	May 3, 2026, 3:47 p.m.
NER	Named-entity recognition	`batch_69f7a07e0c9081909926c9359ab10ab4`	completed	May 3, 2026, 7:22 p.m.
NED1	Entity disambiguation (via context triple)	`batch_6a387292c00c8190be286ecd9b07f97c`	completed	June 21, 2026, 11:24 p.m.
NEDg	Description generation	`batch_6a387468b0888190a0e17ff71a7026b3`	completed	June 21, 2026, 11:31 p.m.
NED2	Entity disambiguation (via description)	`batch_6a3874d125608190a5b65e83823684d8`	completed	June 21, 2026, 11:33 p.m.

Created at: May 3, 2026, 4:05 p.m.