Triple

T15208821
Position Surface form Disambiguated ID Type / Status
Subject Letchworth Garden City railway station E363458 entity
Predicate isOnRoute P2127 FINISHED
Object London–Peterborough E625569 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: London–Peterborough | Statement: [Letchworth Garden City railway station, isOnRoute, London–Peterborough]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: London–Peterborough
Context triple: [Letchworth Garden City railway station, isOnRoute, London–Peterborough]
  • A. Peterborough–Horsham route
    The Peterborough–Horsham route is a north–south commuter rail service in southern England linking Peterborough in Cambridgeshire with Horsham in West Sussex via central London.
  • B. London King’s Cross – Peterborough chosen
    London King’s Cross – Peterborough is a key intercity and commuter rail route in eastern England linking central London with the city of Peterborough.
  • C. London Euston – Northampton
    London Euston – Northampton is a key commuter and intercity rail route in England linking central London with the town of Northampton via the West Coast Main Line.
  • D. Norwich–Cambridge line
    The Norwich–Cambridge line is a regional railway route in eastern England linking the city of Norwich with Cambridge and serving intermediate towns across Norfolk, Suffolk, and Cambridgeshire.
  • E. Ipswich–Lowestoft
    Ipswich–Lowestoft is a regional railway line in East Anglia connecting the town of Ipswich in Suffolk with the coastal resort of Lowestoft.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69d85a0b78bc8190b6e5ad51a2c4cfc5 completed April 10, 2026, 2:01 a.m.
NER Named-entity recognition batch_69e006b8e2788190bd1831762e4181ae completed April 15, 2026, 9:44 p.m.
NED1 Entity disambiguation (via context triple) batch_69fed33dbda08190a10ba81082d0d183 completed May 9, 2026, 6:25 a.m.
Created at: April 10, 2026, 3:11 a.m.