Triple

T10857856
Position Surface form Disambiguated ID Type / Status
Subject Silverlink Metro E256315 entity
Predicate operatedLocalStoppingServicesBetween P5884 FINISHED
Object Watford Junction and London Euston
Watford Junction and London Euston are key stations on the West Coast Main Line in England, forming a busy commuter and intercity rail corridor between Hertfordshire and central London.
E786543 NE FINISHED

How this triple was built (5 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: Watford Junction and London Euston | Statement: [Silverlink Metro, operatedLocalStoppingServicesBetween, Watford Junction and London Euston]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Watford Junction and London Euston
Context triple: [Silverlink Metro, operatedLocalStoppingServicesBetween, Watford Junction and London Euston]
  • A. Watford Junction railway station
    Watford Junction railway station is a major rail hub in Hertfordshire, England, providing regional, commuter, and long-distance services including routes to London and the Midlands.
  • B. London Euston
    London Euston is a major central London railway terminus and key hub for intercity services on the West Coast Main Line.
  • C. Watford Junction
    Watford Junction is a major railway station and transport hub in Watford, Hertfordshire, providing key commuter and intercity connections to London and other destinations.
  • D. Euston
    Euston is a small rural village and civil parish in Suffolk, England, known for its historic Euston Hall and surrounding estate.
  • E. Enfield station
    Enfield station is a planned passenger rail stop in Enfield, Connecticut that will serve trains on the CTrail Hartford Line corridor.
  • 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: Watford Junction and London Euston
Triple: [Silverlink Metro, operatedLocalStoppingServicesBetween, Watford Junction and London Euston]
Generated description
Watford Junction and London Euston are key stations on the West Coast Main Line in England, forming a busy commuter and intercity rail corridor between Hertfordshire and central London.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Watford Junction and London Euston
Target entity description: Watford Junction and London Euston are key stations on the West Coast Main Line in England, forming a busy commuter and intercity rail corridor between Hertfordshire and central London.
  • A. Watford Junction railway station
    Watford Junction railway station is a major rail hub in Hertfordshire, England, providing regional, commuter, and long-distance services including routes to London and the Midlands.
  • B. London Euston
    London Euston is a major central London railway terminus and key hub for intercity services on the West Coast Main Line.
  • C. Watford Junction chosen
    Watford Junction is a major railway station and transport hub in Watford, Hertfordshire, providing key commuter and intercity connections to London and other destinations.
  • D. Euston
    Euston is a small rural village and civil parish in Suffolk, England, known for its historic Euston Hall and surrounding estate.
  • E. Enfield station
    Enfield station is a planned passenger rail stop in Enfield, Connecticut that will serve trains on the CTrail Hartford Line corridor.
  • F. None of above.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: operatedLocalStoppingServicesBetween
Context triple: [Silverlink Metro, operatedLocalStoppingServicesBetween, Watford Junction and London Euston]
  • A. canStopService
    Indicates that an entity has the authority or capability to terminate or halt a particular service.
  • B. operatedUntil
    Indicates that an entity continued to function or be in operation up to a specified end time or date.
  • C. governedForLocalServicesBy
    Indicates that an entity’s local services are administered, managed, or overseen by a specified governing authority or body.
  • D. operatedAmong
    Indicates that an entity carried out operations or activities within, or in coordination with, a specified group, set, or collection of other entities.
  • E. operatesService chosen
    Indicates that an agent runs, manages, or provides a particular service.
  • F. None of above.

Provenance (6 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_69d6aa83d1448190a66d93c32394d21f completed April 8, 2026, 7:20 p.m.
NER Named-entity recognition batch_69d751377da88190a7244bb9d6b0c2ec completed April 9, 2026, 7:11 a.m.
NED1 Entity disambiguation (via context triple) batch_69e154c05bf081909d1892c6c81a5f2c completed April 16, 2026, 9:29 p.m.
NEDg Description generation batch_69e17d3060888190b3801272835b939a completed April 17, 2026, 12:22 a.m.
NED2 Entity disambiguation (via description) batch_69e1806bc1048190bcbff6f6d3d7da19 completed April 17, 2026, 12:35 a.m.
PD Predicate disambiguation batch_69d70d308dfc81908792f98cfb871392 completed April 9, 2026, 2:21 a.m.
Created at: April 8, 2026, 9:20 p.m.