Triple

T7082342
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 755 E164985 entity
Predicate usedOnLine P15252 FINISHED
Object 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.
E666498 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: Norwich–Cambridge line | Statement: [British Rail Class 755, usedOnLine, Norwich–Cambridge line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Norwich–Cambridge line
Context triple: [British Rail Class 755, usedOnLine, Norwich–Cambridge line]
  • A. Ely–Norwich line
    The Ely–Norwich line is a regional railway route in East Anglia, England, connecting the city of Ely with Norwich and serving as an important link across Cambridgeshire, Suffolk, and Norfolk.
  • B. Ely–Ipswich line
    The Ely–Ipswich line is a regional railway route in eastern England that connects the city of Ely in Cambridgeshire with the town of Ipswich in Suffolk, serving as an important link across East Anglia.
  • C. Norwich–Great Yarmouth line
    The Norwich–Great Yarmouth line is a regional railway route in Norfolk, England, linking the city of Norwich with the coastal town of Great Yarmouth.
  • D. Cambridge–Ely line
    The Cambridge–Ely line is a railway route in Cambridgeshire, England, connecting the city of Cambridge with the cathedral city of Ely and forming part of the region’s key passenger and freight network.
  • E. Thetford–Ely line
    The Thetford–Ely line is a rural railway route in eastern England linking the towns of Thetford and Ely and serving intermediate stations such as Shippea Hill.
  • 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: Norwich–Cambridge line
Triple: [British Rail Class 755, usedOnLine, Norwich–Cambridge line]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Norwich–Cambridge line
Target entity description: 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.
  • A. Ely–Norwich line
    The Ely–Norwich line is a regional railway route in East Anglia, England, connecting the city of Ely with Norwich and serving as an important link across Cambridgeshire, Suffolk, and Norfolk.
  • B. Ely–Ipswich line
    The Ely–Ipswich line is a regional railway route in eastern England that connects the city of Ely in Cambridgeshire with the town of Ipswich in Suffolk, serving as an important link across East Anglia.
  • C. Norwich–Great Yarmouth line
    The Norwich–Great Yarmouth line is a regional railway route in Norfolk, England, linking the city of Norwich with the coastal town of Great Yarmouth.
  • D. Cambridge–Ely line
    The Cambridge–Ely line is a railway route in Cambridgeshire, England, connecting the city of Cambridge with the cathedral city of Ely and forming part of the region’s key passenger and freight network.
  • E. Thetford–Ely line
    The Thetford–Ely line is a rural railway route in eastern England linking the towns of Thetford and Ely and serving intermediate stations such as Shippea Hill.
  • 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_69c6887d98408190912b9580666b0c1d completed March 27, 2026, 1:39 p.m.
NER Named-entity recognition batch_69c6e50f133c81908c5f7336fd5bc5d2 completed March 27, 2026, 8:14 p.m.
NED1 Entity disambiguation (via context triple) batch_69c83423e5008190881a7e956c716687 completed March 28, 2026, 8:03 p.m.
NEDg Description generation batch_69c834b792f081908e9292905e4e0d37 completed March 28, 2026, 8:06 p.m.
NED2 Entity disambiguation (via description) batch_69c835d2474081908ec1e93c1ced0b1f completed March 28, 2026, 8:10 p.m.
Created at: March 27, 2026, 2:40 p.m.