Triple

T4671438
Position Surface form Disambiguated ID Type / Status
Subject Southern Railway (UK) E102970 entity
Predicate operated line P15252 FINISHED
Object Chatham Main Line E207138 NE FINISHED

How this triple was built (2 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: Chatham Main Line | Statement: [Southern Railway (UK), operated line, Chatham Main Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chatham Main Line
Context triple: [Southern Railway (UK), operated line, Chatham Main Line]
  • A. Chatham Main Line chosen
    The Chatham Main Line is a major railway route in southeast England that connects London with Medway, east Kent, and coastal towns such as Ramsgate and Dover.
  • B. East Coast Main Line
    The East Coast Main Line is a major high-speed railway route in the United Kingdom that runs between London and Edinburgh, serving numerous key cities and regions along the east side of the country.
  • C. Braintree Branch Line
    The Braintree Branch Line is a rural railway route in Essex that connects the town of Braintree to the wider rail network, primarily serving local commuter and regional passenger traffic.
  • D. North Coast Line
    The North Coast Line is a major railway corridor in New South Wales, Australia, running along the state’s north coast and connecting Sydney with Brisbane and numerous regional centres.
  • E. Pelham Line
    The Pelham Line is a New York City Subway route in the Bronx and Manhattan, operated by the IRT division and primarily served by the 6 train.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69bd43d9cba4819086c1ab1c2d9d2133 completed March 20, 2026, 12:55 p.m.
NER Named-entity recognition batch_69bd6c3d1cb88190a42919dcbfe2568c completed March 20, 2026, 3:48 p.m.
NED1 Entity disambiguation (via context triple) batch_69be039538048190b4075daf47355cee completed March 21, 2026, 2:33 a.m.
Created at: March 20, 2026, 1:15 p.m.