Triple

T24320691
Position Surface form Disambiguated ID Type / Status
Subject Liverpool–Southport line E612951 entity
Predicate usesRollingStock P5426 FINISHED
Object British Rail Class 508
The British Rail Class 508 is a type of electric multiple unit train introduced in the late 1970s for suburban commuter services, now primarily operating on Merseyrail routes around Liverpool.
 E1967398 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: British Rail Class 508 | Statement: [Liverpool–Southport line, usesRollingStock, British Rail Class 508]
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: British Rail Class 508
Triple: [Liverpool–Southport line, usesRollingStock, British Rail Class 508]
Generated description
The British Rail Class 508 is a type of electric multiple unit train introduced in the late 1970s for suburban commuter services, now primarily operating on Merseyrail routes around Liverpool.

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_69e2d7da491c8190b6e6218af50923db completed April 18, 2026, 1:01 a.m.
NER Named-entity recognition batch_69f292ab2fa08190bc19c3edc0a1a9b2 completed April 29, 2026, 11:22 p.m.
NED1 Entity disambiguation (via context triple) batch_6a2b2d566d808190be1a912f41a10309 completed June 11, 2026, 9:49 p.m.
NEDg Description generation batch_6a2b302cf4e081909f90d2dd5051e185 completed June 11, 2026, 10:01 p.m.
NED2 Entity disambiguation (via description) batch_6a2b30f43dd48190bc9a9ffd91ce595d completed June 11, 2026, 10:04 p.m.
Created at: April 18, 2026, 1:49 a.m.