Triple

T19145255
Position Surface form Disambiguated ID Type / Status
Subject Makurdi railway station E468661 entity
Predicate operatedBy P86 FINISHED
Object Nigerian Railway Corporation — 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: Nigerian Railway Corporation | Statement: [Makurdi railway station, operatedBy, Nigerian Railway Corporation]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Nigerian Railway Corporation
Context triple: [Makurdi railway station, operatedBy, Nigerian Railway Corporation]
  • A. Nigerian Railway Corporation chosen
    The Nigerian Railway Corporation is the state-owned enterprise responsible for operating and managing Nigeria’s railway transport services and infrastructure.
  • B. Nigerian Railway Corporation main line
    The Nigerian Railway Corporation main line is a principal railway route in Nigeria that connects major cities and regions across the country, serving as a key backbone of its rail transport network.
  • C. Nigerian Ports Authority
    The Nigerian Ports Authority is the federal government agency responsible for regulating and overseeing the operations of major seaports across Nigeria.
  • D. Lagos Metropolitan Area Transport Authority
    The Lagos Metropolitan Area Transport Authority is the government body responsible for planning, regulating, and coordinating public transportation systems within the Lagos metropolitan region in Nigeria.
  • E. Transmission Company of Nigeria
    The Transmission Company of Nigeria is the state-owned utility responsible for operating and maintaining Nigeria’s national electricity transmission grid.
  • 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_69d8dd084ff48190ac0f8c46ee722629 completed April 10, 2026, 11:20 a.m.
NER Named-entity recognition batch_69e5e978b0b481909a531efa030c5def completed April 20, 2026, 8:53 a.m.
Created at: April 10, 2026, 12:06 p.m.