Triple

T4600703
Position Surface form Disambiguated ID Type / Status
Subject Southampton Central railway station E100311 entity
Predicate railwayLine P848 FINISHED
Object Southampton–Bournemouth line
The Southampton–Bournemouth line is a key railway route on England’s south coast linking the cities of Southampton and Bournemouth and forming part of the wider South West Main Line network.
E455615 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: Southampton–Bournemouth line | Statement: [Southampton Central railway station, railwayLine, Southampton–Bournemouth line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Southampton–Bournemouth line
Context triple: [Southampton Central railway station, railwayLine, Southampton–Bournemouth line]
  • A. Southampton–Portsmouth line
    The Southampton–Portsmouth line is a key railway route on England’s south coast linking the cities of Southampton and Portsmouth and serving numerous intermediate suburban and coastal communities.
  • B. Bristol–Bath line
    The Bristol–Bath line is a key railway route in southwest England that connects the cities of Bristol and Bath, forming part of the Great Western Main Line network.
  • C. Brighton to Portsmouth line
    The Brighton to Portsmouth line is a coastal railway route in southern England linking the city of Brighton with Portsmouth via several intermediate towns and stations.
  • D. Dover–Ramsgate line
    The Dover–Ramsgate line is a coastal railway route in Kent, England, linking the port town of Dover with the seaside resort of Ramsgate and serving several intermediate communities.
  • E. East Coastway Line
    The East Coastway Line is a major railway route in East Sussex, England, running along the south coast and connecting Brighton and Lewes with coastal towns such as Eastbourne and Hastings.
  • 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: Southampton–Bournemouth line
Triple: [Southampton Central railway station, railwayLine, Southampton–Bournemouth line]
Generated description
The Southampton–Bournemouth line is a key railway route on England’s south coast linking the cities of Southampton and Bournemouth and forming part of the wider South West Main Line network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Southampton–Bournemouth line
Target entity description: The Southampton–Bournemouth line is a key railway route on England’s south coast linking the cities of Southampton and Bournemouth and forming part of the wider South West Main Line network.
  • A. Southampton–Portsmouth line
    The Southampton–Portsmouth line is a key railway route on England’s south coast linking the cities of Southampton and Portsmouth and serving numerous intermediate suburban and coastal communities.
  • B. Bristol–Bath line
    The Bristol–Bath line is a key railway route in southwest England that connects the cities of Bristol and Bath, forming part of the Great Western Main Line network.
  • C. Brighton to Portsmouth line
    The Brighton to Portsmouth line is a coastal railway route in southern England linking the city of Brighton with Portsmouth via several intermediate towns and stations.
  • D. Dover–Ramsgate line
    The Dover–Ramsgate line is a coastal railway route in Kent, England, linking the port town of Dover with the seaside resort of Ramsgate and serving several intermediate communities.
  • E. East Coastway Line
    The East Coastway Line is a major railway route in East Sussex, England, running along the south coast and connecting Brighton and Lewes with coastal towns such as Eastbourne and Hastings.
  • 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_69bd43cbc014819098b45f435908f88a completed March 20, 2026, 12:55 p.m.
NER Named-entity recognition batch_69bd597346a08190b47eda3b73076f8b completed March 20, 2026, 2:28 p.m.
NED1 Entity disambiguation (via context triple) batch_69bdfa5a7aac8190b540b80816d55051 completed March 21, 2026, 1:54 a.m.
NEDg Description generation batch_69bdfb37b1448190a4001b9ed2b79012 completed March 21, 2026, 1:58 a.m.
NED2 Entity disambiguation (via description) batch_69bdfc105e6c8190b21e3c8e7076e9ff completed March 21, 2026, 2:01 a.m.
Created at: March 20, 2026, 1:11 p.m.