Triple

T13220944
Position Surface form Disambiguated ID Type / Status
Subject Metro Expo Park/USC station E314748 entity
Predicate partOfLineSegment P57328 FINISHED
Object Expo Line Phase 1 E782106 NE FINISHED

How this triple was built (3 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: Expo Line Phase 1 | Statement: [Metro Expo Park/USC station, partOfLineSegment, Expo Line Phase 1]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Expo Line Phase 1
Context triple: [Metro Expo Park/USC station, partOfLineSegment, Expo Line Phase 1]
  • A. Expo Line phase 1 chosen
    Expo Line phase 1 is the initial segment of Los Angeles Metro's E Line light rail, connecting downtown Los Angeles to the Westside and serving as the foundation for the line’s later westward extensions.
  • B. Expo Line
    The Expo Line is a major automated rapid transit line in Metro Vancouver’s SkyTrain system, connecting downtown Vancouver with key suburban centres in Burnaby, New Westminster, and Surrey.
  • C. Expo Line (Los Angeles Metro)
    The Expo Line (Los Angeles Metro), now known as the E Line, is a light rail route in Los Angeles that connects Downtown Los Angeles to Santa Monica, serving major Westside neighborhoods and destinations.
  • D. Metro C Line
    The Metro C Line is a light rail line in Los Angeles County that runs east–west, connecting Norwalk to Redondo Beach and serving key transit hubs including Los Angeles International Airport via shuttle.
  • E. Rio Metro Regional Transit District
    Rio Metro Regional Transit District is a public transportation agency in central New Mexico that oversees regional commuter rail and bus services, including the New Mexico Rail Runner Express.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: partOfLineSegment
Context triple: [Metro Expo Park/USC station, partOfLineSegment, Expo Line Phase 1]
  • A. formsPartOfLine chosen
    Indicates that one element constitutes a segment or component belonging to a larger line.
  • B. isJunctionOnLine
    Indicates that a particular junction lies on, or is part of, a specified line.
  • C. hasSegmentOn
    Indicates that one entity includes or occupies a specific segment or portion on another entity (such as a line, path, or sequence).
  • D. partOfRange
    Indicates that one entity is included within, or constitutes a segment of, the overall extent or span defined by another entity.
  • E. isBetweenStationsOnLine
    Indicates that something is located or occurs between two stations along the same transit line.
  • F. None of above.

Provenance (4 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_69d806affc688190a25b6ccc588e9c72 completed April 9, 2026, 8:06 p.m.
NER Named-entity recognition batch_69d98cf581508190883033f0c961736a completed April 10, 2026, 11:51 p.m.
NED1 Entity disambiguation (via context triple) batch_69f6ff2282fc8190bc5037ff62e594ff completed May 3, 2026, 7:54 a.m.
PD Predicate disambiguation batch_69d98bc938f081909f123bdf1263ff7f completed April 10, 2026, 11:46 p.m.
Created at: April 9, 2026, 9:18 p.m.