Triple

T21196512
Position Surface form Disambiguated ID Type / Status
Subject TRAX light rail E522340 entity
Predicate hasLine P35 FINISHED
Object Blue Line (TRAX)
Blue Line (TRAX) is a primary light rail route in the Salt Lake City metropolitan area that connects downtown Salt Lake City with its southern suburbs as part of the UTA TRAX system.
 E522340 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: Blue Line (TRAX) | Statement: [TRAX light rail, hasLine, Blue Line (TRAX)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Blue Line (TRAX)
Context triple: [TRAX light rail, hasLine, Blue Line (TRAX)]
  • A. TRAX light rail
    TRAX light rail is a public transit light rail system in the Salt Lake City metropolitan area of Utah, operated by the Utah Transit Authority.
  • B. Capital MetroRail Red Line
    The Capital MetroRail Red Line is a commuter rail service in Austin, Texas, connecting downtown with northern suburbs and key destinations along a 32-mile corridor.
  • C. L Line (Denver light rail)
    The L Line is a light rail service in Denver, Colorado, that runs through the city’s central and northeastern neighborhoods as part of the Denver RTD rail network.
  • D. H Line (Denver light rail)
    The H Line is a light rail service in the Denver metropolitan area that connects downtown Denver with southeastern suburbs as part of the region’s RTD rail network.
  • E. Blue Line (St. Louis MetroLink)
    The Blue Line is one of the two primary light rail routes in the St. Louis MetroLink system, providing service between downtown St. Louis and the western suburbs.
  • 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: Blue Line (TRAX)
Triple: [TRAX light rail, hasLine, Blue Line (TRAX)]
Generated description
Blue Line (TRAX) is a primary light rail route in the Salt Lake City metropolitan area that connects downtown Salt Lake City with its southern suburbs as part of the UTA TRAX system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Blue Line (TRAX)
Target entity description: Blue Line (TRAX) is a primary light rail route in the Salt Lake City metropolitan area that connects downtown Salt Lake City with its southern suburbs as part of the UTA TRAX system.
  • A. TRAX light rail chosen
    TRAX light rail is a public transit light rail system in the Salt Lake City metropolitan area of Utah, operated by the Utah Transit Authority.
  • B. Capital MetroRail Red Line
    The Capital MetroRail Red Line is a commuter rail service in Austin, Texas, connecting downtown with northern suburbs and key destinations along a 32-mile corridor.
  • C. L Line (Denver light rail)
    The L Line is a light rail service in Denver, Colorado, that runs through the city’s central and northeastern neighborhoods as part of the Denver RTD rail network.
  • D. H Line (Denver light rail)
    The H Line is a light rail service in the Denver metropolitan area that connects downtown Denver with southeastern suburbs as part of the region’s RTD rail network.
  • E. Blue Line (St. Louis MetroLink)
    The Blue Line is one of the two primary light rail routes in the St. Louis MetroLink system, providing service between downtown St. Louis and the western suburbs.
  • F. None of above.

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_69e0b51061388190aa03f19700d3ef04 completed April 16, 2026, 10:08 a.m.
NER Named-entity recognition batch_69e7333bd7a0819084bbd1d6c111bc65 completed April 21, 2026, 8:20 a.m.
NED1 Entity disambiguation (via context triple) batch_6a097ecad6308190ae66611cdfe4f1c9 completed May 17, 2026, 8:39 a.m.
NEDg Description generation batch_6a097f7635f08190bf9552d4aa05063e completed May 17, 2026, 8:42 a.m.
NED2 Entity disambiguation (via description) batch_6a098037ffa4819095b1482d6bd83583 completed May 17, 2026, 8:45 a.m.
Created at: April 16, 2026, 3:08 p.m.