Triple

T4509729
Position Surface form Disambiguated ID Type / Status
Subject London Waterloo–Exeter E102018 entity
Predicate lineUsed P6301 FINISHED
Object South West Main Line (London Waterloo to Basingstoke)
The South West Main Line (London Waterloo to Basingstoke) is a key commuter and intercity railway corridor in southern England, linking central London with Hampshire and serving as the first section of the main route toward southwest England.
E448401 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: South West Main Line (London Waterloo to Basingstoke) | Statement: [London Waterloo–Exeter, lineUsed, South West Main Line (London Waterloo to Basingstoke)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: South West Main Line (London Waterloo to Basingstoke)
Context triple: [London Waterloo–Exeter, lineUsed, South West Main Line (London Waterloo to Basingstoke)]
  • A. Wessex Main Line
    The Wessex Main Line is a key railway route in southern England linking Bristol and Bath with Salisbury and Southampton, serving as an important regional passenger corridor.
  • B. Chiltern Main Line
    The Chiltern Main Line is a major railway route in England connecting London Marylebone with the West Midlands via key towns such as High Wycombe, Banbury, and Leamington Spa.
  • C. West of England Main Line
    The West of England Main Line is a major railway route in southwest England that connects London with Exeter and passes through several counties including Somerset.
  • D. Berks and Hants Line
    The Berks and Hants Line is a railway route in southern England linking Reading with the West of England, forming part of the Great Western Railway network.
  • E. Oxford–Bicester line
    The Oxford–Bicester line is a railway route in Oxfordshire, England, connecting Oxford with the town of Bicester as part of the regional and commuter rail network.
  • 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: South West Main Line (London Waterloo to Basingstoke)
Triple: [London Waterloo–Exeter, lineUsed, South West Main Line (London Waterloo to Basingstoke)]
Generated description
The South West Main Line (London Waterloo to Basingstoke) is a key commuter and intercity railway corridor in southern England, linking central London with Hampshire and serving as the first section of the main route toward southwest England.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: South West Main Line (London Waterloo to Basingstoke)
Target entity description: The South West Main Line (London Waterloo to Basingstoke) is a key commuter and intercity railway corridor in southern England, linking central London with Hampshire and serving as the first section of the main route toward southwest England.
  • A. Wessex Main Line
    The Wessex Main Line is a key railway route in southern England linking Bristol and Bath with Salisbury and Southampton, serving as an important regional passenger corridor.
  • B. Chiltern Main Line
    The Chiltern Main Line is a major railway route in England connecting London Marylebone with the West Midlands via key towns such as High Wycombe, Banbury, and Leamington Spa.
  • C. West of England Main Line
    The West of England Main Line is a major railway route in southwest England that connects London with Exeter and passes through several counties including Somerset.
  • D. Berks and Hants Line
    The Berks and Hants Line is a railway route in southern England linking Reading with the West of England, forming part of the Great Western Railway network.
  • E. Oxford–Bicester line
    The Oxford–Bicester line is a railway route in Oxfordshire, England, connecting Oxford with the town of Bicester as part of the regional and commuter rail network.
  • 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_69bd43d6251c81909deecce3e6e9d69c completed March 20, 2026, 12:55 p.m.
NER Named-entity recognition batch_69bd571138b88190b68bbfc4300aaf9d completed March 20, 2026, 2:17 p.m.
NED1 Entity disambiguation (via context triple) batch_69bd7f7c1bd08190bc7b7028a512a466 completed March 20, 2026, 5:10 p.m.
NEDg Description generation batch_69bd84bae7148190ae201ea5257dd43e completed March 20, 2026, 5:32 p.m.
NED2 Entity disambiguation (via description) batch_69bd857181e4819086b7d0b493fbb9a3 completed March 20, 2026, 5:35 p.m.
Created at: March 20, 2026, 1:01 p.m.