Triple

T180926
Position Surface form Disambiguated ID Type / Status
Subject Avanti West Coast E3873 entity
Predicate primaryRoute P6298 FINISHED
Object London Euston – Birmingham
London Euston – Birmingham is a major intercity rail corridor in England linking the capital with the West Midlands.
 E23213 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 – Birmingham | Statement: [Avanti West Coast, primaryRoute, London Euston – Birmingham]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: London Euston – Birmingham
Context triple: [Avanti West Coast, primaryRoute, London Euston – Birmingham]
  • A. London Euston – Manchester
    London Euston – Manchester is a major intercity rail corridor in the United Kingdom linking the capital with the city of Manchester on the West Coast Main Line.
  • B. Birmingham New Street
    Birmingham New Street is the main railway station in Birmingham, England, and one of the busiest rail hubs in the United Kingdom.
  • C. Manchester Piccadilly
    Manchester Piccadilly is the main railway terminus and busiest train station in Manchester, England, serving as a key hub for regional and national rail services.
  • D. East Midlands Railway
    East Midlands Railway is a British train operating company providing regional and intercity passenger rail services across the East Midlands and surrounding areas.
  • E. Manchester to Leeds line
    The Manchester to Leeds line is a key trans-Pennine railway route in northern England connecting major cities across the Pennines.
  • 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 – Birmingham
Triple: [Avanti West Coast, primaryRoute, London Euston – Birmingham]
Generated description
London Euston – Birmingham is a major intercity rail corridor in England linking the capital with the West Midlands.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: London Euston – Birmingham
Target entity description: London Euston – Birmingham is a major intercity rail corridor in England linking the capital with the West Midlands.
  • A. London Euston – Manchester
    London Euston – Manchester is a major intercity rail corridor in the United Kingdom linking the capital with the city of Manchester on the West Coast Main Line.
  • B. Birmingham New Street
    Birmingham New Street is the main railway station in Birmingham, England, and one of the busiest rail hubs in the United Kingdom.
  • C. Manchester Piccadilly
    Manchester Piccadilly is the main railway terminus and busiest train station in Manchester, England, serving as a key hub for regional and national rail services.
  • D. East Midlands Railway
    East Midlands Railway is a British train operating company providing regional and intercity passenger rail services across the East Midlands and surrounding areas.
  • E. Manchester to Leeds line
    The Manchester to Leeds line is a key trans-Pennine railway route in northern England connecting major cities across the Pennines.
  • 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_69a25497e2f08190a040f8c6e1842643 completed Feb. 28, 2026, 2:36 a.m.
NER Named-entity recognition batch_69a25bafd5808190a0a0cb2b21ce007f completed Feb. 28, 2026, 3:06 a.m.
NED1 Entity disambiguation (via context triple) batch_69a2fa7c7a288190bc547d5e7010732b completed Feb. 28, 2026, 2:23 p.m.
NEDg Description generation batch_69a2fb52104881908fb78842af09bf0e completed Feb. 28, 2026, 2:27 p.m.
NED2 Entity disambiguation (via description) batch_69a2fc081c8c8190a37abb5fbcc7c335 completed Feb. 28, 2026, 2:30 p.m.
Created at: Feb. 28, 2026, 2:40 a.m.