Triple

T19790423
Position Surface form Disambiguated ID Type / Status
Subject Port of Dar es Salaam E475393 entity
Predicate connectedTo P37 FINISHED
Object Central Line railway NE NERFINISHED

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: Central Line railway | Statement: [Port of Dar es Salaam, connectedTo, Central Line railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Central Line railway
Context triple: [Port of Dar es Salaam, connectedTo, Central Line railway]
  • A. Central Line railway chosen
    The Central Line railway is a major Tanzanian rail route that connects the coastal city of Dar es Salaam with the country’s central and western regions, serving as a key corridor for passenger and freight transport.
  • B. Southern Line railway
    The Southern Line railway is a commuter rail route in Cape Town, South Africa, running along the city’s southern corridor and connecting central Cape Town with its southern suburbs and coastal communities.
  • C. Midland Line
    The Midland Line is a scenic New Zealand railway route across the South Island, best known today for carrying the TranzAlpine passenger service between Christchurch and Greymouth through the Southern Alps.
  • D. Anhalt Railway
    The Anhalt Railway is a major German railway line historically connecting Berlin with the Anhalt region and further south, serving both regional and long-distance traffic.
  • E. Great Central Railway
    The Great Central Railway was a major British railway company that operated routes in northern England and the Midlands before being absorbed into the London and North Eastern Railway in 1923.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 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_69d8e51b014081908b263e167370529a completed April 10, 2026, 11:55 a.m.
NER Named-entity recognition batch_69e653c217bc819092c517b27ca22087 completed April 20, 2026, 4:26 p.m.
Created at: April 10, 2026, 1:49 p.m.