Triple

T35692242
Position Surface form Disambiguated ID Type / Status
Subject New Brighton branch of the Wirral Line E1031325 entity
Predicate usesRollingStock P5426 FINISHED
Object Merseyrail Class 508 EMU
The Merseyrail Class 508 EMU is a type of electric multiple unit train used on Merseyside’s suburban rail network, particularly known for operating on lines such as the Wirral and Northern Lines.
 E2153383 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 508 EMU | Statement: [New Brighton branch of the Wirral Line, usesRollingStock, Merseyrail Class 508 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 508 EMU
Triple: [New Brighton branch of the Wirral Line, usesRollingStock, Merseyrail Class 508 EMU]
Generated description
The Merseyrail Class 508 EMU is a type of electric multiple unit train used on Merseyside’s suburban rail network, particularly known for operating on lines such as the Wirral and Northern 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_6a387d087788819087f885cf1745f9fc completed June 22, 2026, 12:08 a.m.
NEDg Description generation batch_6a387e0b606c819093d074bde21518d2 completed June 22, 2026, 12:12 a.m.
NED2 Entity disambiguation (via description) batch_6a3880fb52d4819099c2bdba7e7d948f completed June 22, 2026, 12:25 a.m.
Created at: May 3, 2026, 4:05 p.m.