Triple

T2230977
Position Surface form Disambiguated ID Type / Status
Subject PPG Paints Arena E48762 entity
Predicate publicTransit P1288 FINISHED
Object 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.
 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: Pittsburgh Regional Transit | Statement: [PPG Paints Arena, publicTransit, Pittsburgh Regional Transit]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Pittsburgh Regional Transit
Context triple: [PPG Paints Arena, publicTransit, Pittsburgh Regional Transit]
  • A. Manchester Transit Authority
    Manchester Transit Authority is the primary public bus and paratransit service provider for the city of Manchester, New Hampshire and surrounding areas.
  • B. SEPTA Suburban Transit Division
    The SEPTA Suburban Transit Division is the part of Philadelphia’s regional transit system that operates bus, trolley, and other public transportation services in the suburban areas surrounding the city.
  • C. Omnitrans
    Omnitrans is the primary public bus transit agency serving San Bernardino County and surrounding communities in Southern California.
  • D. Southeastern Pennsylvania Transportation Authority
    The Southeastern Pennsylvania Transportation Authority (SEPTA) is the regional public transit agency serving the Philadelphia metropolitan area, operating buses, subways, trolleys, and commuter rail services across southeastern Pennsylvania.
  • E. SEPTA City Transit Division
    The SEPTA City Transit Division is the branch of Philadelphia’s regional transit authority that operates the city’s buses, trolleys, and subway–elevated lines.
  • 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: Pittsburgh Regional Transit
Triple: [PPG Paints Arena, publicTransit, Pittsburgh Regional Transit]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Pittsburgh Regional Transit
Target entity description: 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.
  • A. Manchester Transit Authority
    Manchester Transit Authority is the primary public bus and paratransit service provider for the city of Manchester, New Hampshire and surrounding areas.
  • B. SEPTA Suburban Transit Division
    The SEPTA Suburban Transit Division is the part of Philadelphia’s regional transit system that operates bus, trolley, and other public transportation services in the suburban areas surrounding the city.
  • C. Omnitrans
    Omnitrans is the primary public bus transit agency serving San Bernardino County and surrounding communities in Southern California.
  • D. Southeastern Pennsylvania Transportation Authority
    The Southeastern Pennsylvania Transportation Authority (SEPTA) is the regional public transit agency serving the Philadelphia metropolitan area, operating buses, subways, trolleys, and commuter rail services across southeastern Pennsylvania.
  • E. SEPTA City Transit Division
    The SEPTA City Transit Division is the branch of Philadelphia’s regional transit authority that operates the city’s buses, trolleys, and subway–elevated lines.
  • 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_69a88aa51b388190949868ec9766e587 completed March 4, 2026, 7:40 p.m.
NER Named-entity recognition batch_69abc06b7374819089fe643e12797bfd completed March 7, 2026, 6:06 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae656a1f788190a08c3283bfedb6f4 completed March 9, 2026, 6:15 a.m.
NEDg Description generation batch_69ae65d4f26481909808c97b95ca9b30 completed March 9, 2026, 6:16 a.m.
NED2 Entity disambiguation (via description) batch_69ae6670b6d88190a09023fae63f4000 completed March 9, 2026, 6:19 a.m.
Created at: March 4, 2026, 7:47 p.m.