Triple

T18631138
Position Surface form Disambiguated ID Type / Status
Subject Tattenham Corner line E455417 entity
Predicate rollingStockOperator P6305 FINISHED
Object Southern Class 377 EMUs — NE NERFINISHED

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: Southern Class 377 EMUs | Statement: [Tattenham Corner line, rollingStockOperator, Southern Class 377 EMUs]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Southern Class 377 EMUs
Context triple: [Tattenham Corner line, rollingStockOperator, Southern Class 377 EMUs]
  • A. Southern Class 377 EMUs chosen
    Southern Class 377 EMUs are a fleet of modern electric multiple-unit commuter trains operated by Southern on suburban and regional routes in southeast England.
  • B. British Rail Class 321 electric multiple units
    The British Rail Class 321 electric multiple units are a series of suburban and commuter trains introduced in the late 1980s for use on electrified routes in the UK, known for their widespread service in the south-east of England and East Anglia.
  • C. British Rail Class 317 electric multiple units
    The British Rail Class 317 electric multiple units are a series of suburban electric trains introduced in the early 1980s for commuter services around London, known for their steel-bodied Mark 3–derived design and long service life.
  • D. British Rail Class 318 electric multiple units
    The British Rail Class 318 electric multiple units are suburban EMU trains introduced in the mid-1980s for commuter services around Glasgow, Scotland, featuring steel-bodied construction and 25 kV AC overhead electrification.
  • E. British Rail Class 319 electric multiple units
    The British Rail Class 319 electric multiple units are dual-voltage commuter trains introduced in the late 1980s for cross-London services, capable of operating on both overhead and third-rail electrification systems.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

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_69d8d38cc7948190a55ea64e5638994e completed April 10, 2026, 10:40 a.m.
NER Named-entity recognition batch_69e54f07fa8481908b2535b8fba70b7e completed April 19, 2026, 9:54 p.m.
Created at: April 10, 2026, 11:46 a.m.