Triple

T20215486
Position Surface form Disambiguated ID Type / Status
Subject Seaford railway station E493609 entity
Predicate servedBy P82 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: [Seaford railway station, servedBy, Southern Class 377 EMUs]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Southern Class 377 EMUs
Context triple: [Seaford railway station, servedBy, 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. Southern Class 313 EMUs
    Southern Class 313 EMUs are dual-voltage electric multiple-unit trains used for suburban and commuter services in the Southern region of the UK rail network.
  • C. 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.
  • D. 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.
  • E. 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.
  • 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_69da6269614c8190bb40475d9d477358 completed April 11, 2026, 3:02 p.m.
NER Named-entity recognition batch_69e66ed8cc8c8190889ecadc702010d8 completed April 20, 2026, 6:22 p.m.
Created at: April 11, 2026, 11:38 p.m.