Triple

T13604533
Position Surface form Disambiguated ID Type / Status
Subject Niagara Frontier Transportation Authority E325026 entity
Predicate operates P24 FINISHED
Object Metro Rail
Metro Rail is the light rail rapid transit system serving the Buffalo–Niagara region of New York.
 E1050099 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: Metro Rail | Statement: [Niagara Frontier Transportation Authority, operates, Metro Rail]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Metro Rail
Context triple: [Niagara Frontier Transportation Authority, operates, Metro Rail]
  • A. Metro Rail
    Metro Rail is the urban rapid transit rail system serving Los Angeles County, providing light rail and subway services across the region.
  • B. Metro Trains
    Metro Trains is a suburban passenger rail service brand operating the metropolitan train network in Melbourne, Australia.
  • C. Metrorail
    Metrorail is the rapid transit system serving the Washington, D.C. metropolitan area, operated by the Washington Metropolitan Area Transit Authority (WMATA).
  • D. Metrorail
    Metrorail is Miami-Dade County’s elevated rapid transit system that connects key neighborhoods, suburbs, and downtown Miami.
  • E. METRORail light rail
    METRORail light rail is Houston's urban light rail transit system operated by METRO, connecting key destinations throughout the city’s central area.
  • 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: Metro Rail
Triple: [Niagara Frontier Transportation Authority, operates, Metro Rail]
Generated description
Metro Rail is the light rail rapid transit system serving the Buffalo–Niagara region of New York.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Metro Rail
Target entity description: Metro Rail is the light rail rapid transit system serving the Buffalo–Niagara region of New York.
  • A. Metro Rail
    Metro Rail is the urban rapid transit rail system serving Los Angeles County, providing light rail and subway services across the region.
  • B. Metro Trains
    Metro Trains is a suburban passenger rail service brand operating the metropolitan train network in Melbourne, Australia.
  • C. Metrorail
    Metrorail is the rapid transit system serving the Washington, D.C. metropolitan area, operated by the Washington Metropolitan Area Transit Authority (WMATA).
  • D. Metrorail
    Metrorail is Miami-Dade County’s elevated rapid transit system that connects key neighborhoods, suburbs, and downtown Miami.
  • E. METRORail light rail
    METRORail light rail is Houston's urban light rail transit system operated by METRO, connecting key destinations throughout the city’s central area.
  • F. None of above. chosen

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_69d80769eaf081909d82f44e484d6113 completed April 9, 2026, 8:09 p.m.
NER Named-entity recognition batch_69dbb07ca07481909c45da551ea61ab4 completed April 12, 2026, 2:47 p.m.
NED1 Entity disambiguation (via context triple) batch_69f77f93ec588190993baec788d22670 completed May 3, 2026, 5:02 p.m.
NEDg Description generation batch_69f780bc40f481908191fec9a563e547 completed May 3, 2026, 5:07 p.m.
NED2 Entity disambiguation (via description) batch_69f7817b8c408190b7211ba8fd892f75 completed May 3, 2026, 5:10 p.m.
Created at: April 9, 2026, 9:50 p.m.