Triple

T10416064
Position Surface form Disambiguated ID Type / Status
Subject Pittsburgh Regional Transit E245518 entity
Predicate governingBody P46 FINISHED
Object Board of Directors of Pittsburgh Regional Transit
The Board of Directors of Pittsburgh Regional Transit is the policy-making and oversight body that directs the strategy, finances, and operations of the public transit agency serving the Pittsburgh metropolitan area.
E245518 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: Board of Directors of Pittsburgh Regional Transit | Statement: [Pittsburgh Regional Transit, governingBody, Board of Directors of Pittsburgh Regional Transit]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Board of Directors of Pittsburgh Regional Transit
Context triple: [Pittsburgh Regional Transit, governingBody, Board of Directors of Pittsburgh Regional Transit]
  • A. Board of Trustees of Greater Cleveland Regional Transit Authority
    The Board of Trustees of the Greater Cleveland Regional Transit Authority is the governing body responsible for overseeing policy, budgeting, and strategic direction for Cleveland’s public transit system, including its rail operations.
  • B. Board of Directors of the San Mateo County Transit District
    The Board of Directors of the San Mateo County Transit District is the policy-making and oversight body that directs and supervises the operations, budget, and strategic planning of SamTrans public transportation services in San Mateo County, California.
  • C. Board of Directors of NJ Transit
    The Board of Directors of NJ Transit is the governing body that oversees policy, strategic direction, and fiscal and operational decisions for New Jersey’s statewide public transportation agency.
  • D. Board of Directors of Long Beach Transit
    The Board of Directors of Long Beach Transit is the policy-making and oversight body responsible for guiding the strategic direction and management of the public transit agency serving Long Beach, California.
  • E. Pittsburgh Regional Transit
    Pittsburgh Regional Transit is the primary public transportation agency serving the Pittsburgh metropolitan area, operating buses, light rail, and other transit services across the region.
  • 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: Board of Directors of Pittsburgh Regional Transit
Triple: [Pittsburgh Regional Transit, governingBody, Board of Directors of Pittsburgh Regional Transit]
Generated description
The Board of Directors of Pittsburgh Regional Transit is the policy-making and oversight body that directs the strategy, finances, and operations of the public transit agency serving the Pittsburgh metropolitan area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Board of Directors of Pittsburgh Regional Transit
Target entity description: The Board of Directors of Pittsburgh Regional Transit is the policy-making and oversight body that directs the strategy, finances, and operations of the public transit agency serving the Pittsburgh metropolitan area.
  • A. Board of Trustees of Greater Cleveland Regional Transit Authority
    The Board of Trustees of the Greater Cleveland Regional Transit Authority is the governing body responsible for overseeing policy, budgeting, and strategic direction for Cleveland’s public transit system, including its rail operations.
  • B. Board of Directors of the San Mateo County Transit District
    The Board of Directors of the San Mateo County Transit District is the policy-making and oversight body that directs and supervises the operations, budget, and strategic planning of SamTrans public transportation services in San Mateo County, California.
  • C. Board of Directors of NJ Transit
    The Board of Directors of NJ Transit is the governing body that oversees policy, strategic direction, and fiscal and operational decisions for New Jersey’s statewide public transportation agency.
  • D. Board of Directors of Long Beach Transit
    The Board of Directors of Long Beach Transit is the policy-making and oversight body responsible for guiding the strategic direction and management of the public transit agency serving Long Beach, California.
  • E. Pittsburgh Regional Transit chosen
    Pittsburgh Regional Transit is the primary public transportation agency serving the Pittsburgh metropolitan area, operating buses, light rail, and other transit services across the region.
  • 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_69d381be340c8190b05998703d42d224 completed April 6, 2026, 9:49 a.m.
NER Named-entity recognition batch_69d4ea108fec8190819423630888fa2b completed April 7, 2026, 11:27 a.m.
NED1 Entity disambiguation (via context triple) batch_69d7fc0dd480819082edcc49a245ad4f completed April 9, 2026, 7:20 p.m.
NEDg Description generation batch_69d822d6a0188190a7ee6de5aab50486 completed April 9, 2026, 10:06 p.m.
NED2 Entity disambiguation (via description) batch_69d859e40bf88190a6dc8deed3049d31 completed April 10, 2026, 2:01 a.m.
Created at: April 6, 2026, 12:10 p.m.