Triple

T5834931
Position Surface form Disambiguated ID Type / Status
Subject London Midland E129443 entity
Predicate operatedRoute P18593 FINISHED
Object London Euston – Tring – Milton Keynes Central
London Euston – Tring – Milton Keynes Central is a regional rail service corridor in England linking central London with towns in Hertfordshire and the major transport hub of Milton Keynes.
 E553402 NE FINISHED

How this triple was built (4 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 Euston – Tring – Milton Keynes Central | Statement: [London Midland, operatedRoute, London Euston – Tring – Milton Keynes Central]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: London Euston – Tring – Milton Keynes Central
Context triple: [London Midland, operatedRoute, London Euston – Tring – Milton Keynes Central]
  • A. Birmingham New Street – Coventry – Northampton – London Euston
    Birmingham New Street – Coventry – Northampton – London Euston is a key inter-city rail corridor in England linking the West Midlands with central London via the West Coast Main Line.
  • B. 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.
  • C. Milton Keynes Central railway station
    Milton Keynes Central railway station is a major intercity and commuter rail hub in Milton Keynes, England, providing frequent services on key routes between London, the Midlands, and the North West.
  • D. Birmingham New Street – London Euston
    Birmingham New Street – London Euston is a major intercity rail route in the United Kingdom linking Birmingham’s principal station with one of London’s main termini on the West Coast Main Line.
  • E. London St Pancras – Nottingham
    London St Pancras – Nottingham is a key intercity rail route in England linking London with the East Midlands city of Nottingham.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
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: London Euston – Tring – Milton Keynes Central
Triple: [London Midland, operatedRoute, London Euston – Tring – Milton Keynes Central]
Generated description
London Euston – Tring – Milton Keynes Central is a regional rail service corridor in England linking central London with towns in Hertfordshire and the major transport hub of Milton Keynes.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: London Euston – Tring – Milton Keynes Central
Target entity description: London Euston – Tring – Milton Keynes Central is a regional rail service corridor in England linking central London with towns in Hertfordshire and the major transport hub of Milton Keynes.
  • A. Birmingham New Street – Coventry – Northampton – London Euston
    Birmingham New Street – Coventry – Northampton – London Euston is a key inter-city rail corridor in England linking the West Midlands with central London via the West Coast Main Line.
  • B. 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.
  • C. Milton Keynes Central railway station
    Milton Keynes Central railway station is a major intercity and commuter rail hub in Milton Keynes, England, providing frequent services on key routes between London, the Midlands, and the North West.
  • D. Birmingham New Street – London Euston
    Birmingham New Street – London Euston is a major intercity rail route in the United Kingdom linking Birmingham’s principal station with one of London’s main termini on the West Coast Main Line.
  • E. London St Pancras – Nottingham
    London St Pancras – Nottingham is a key intercity rail route in England linking London with the East Midlands city of Nottingham.
  • F. None of above. chosen

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_69c0084af79c81908af128ccc29983d0 completed March 22, 2026, 3:18 p.m.
NER Named-entity recognition batch_69c034a1e6a88190b1aac05511793315 completed March 22, 2026, 6:27 p.m.
NED1 Entity disambiguation (via context triple) batch_69c0b0ef1c988190b452158b560cf39f completed March 23, 2026, 3:18 a.m.
NEDg Description generation batch_69c0b1e5cdc081908d0d2b76701d20ea completed March 23, 2026, 3:22 a.m.
NED2 Entity disambiguation (via description) batch_69c0b24d7d148190901e233d815d21ad completed March 23, 2026, 3:23 a.m.
Created at: March 22, 2026, 3:54 p.m.