Triple

T128650
Position Surface form Disambiguated ID Type / Status
Subject Atlanta E2602 entity
Predicate hasPublicTransitSystem P105 FINISHED
Object Metropolitan Atlanta Rapid Transit Authority (MARTA)
The Metropolitan Atlanta Rapid Transit Authority (MARTA) is the primary public transportation agency serving the Atlanta metropolitan area, operating a network of heavy rail, bus, and paratransit services.
 E14659 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: Metropolitan Atlanta Rapid Transit Authority (MARTA) | Statement: [Atlanta, hasPublicTransitSystem, Metropolitan Atlanta Rapid Transit Authority (MARTA)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Metropolitan Atlanta Rapid Transit Authority (MARTA)
Context triple: [Atlanta, hasPublicTransitSystem, Metropolitan Atlanta Rapid Transit Authority (MARTA)]
  • A. Washington Metropolitan Area Transit Authority
    The Washington Metropolitan Area Transit Authority is the agency that manages public transportation services, including Metrorail and Metrobus, in the Washington, D.C. metropolitan region.
  • B. MBTA
    The MBTA (Massachusetts Bay Transportation Authority) is the public transit agency that operates subway, bus, commuter rail, and ferry services in the Greater Boston area.
  • C. Metropolitan Transportation Authority
    The Metropolitan Transportation Authority is the public agency responsible for operating and overseeing much of the mass transit and commuter rail systems in the New York City metropolitan area.
  • D. Atlanta BeltLine
    The Atlanta BeltLine is a major urban redevelopment project transforming a former railway corridor into a network of multi-use trails, parks, and transit encircling Atlanta’s core neighborhoods.
  • E. Tompkins Consolidated Area Transit
    Tompkins Consolidated Area Transit is the primary public bus system serving Ithaca and the surrounding Tompkins County region in New York.
  • 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: Metropolitan Atlanta Rapid Transit Authority (MARTA)
Triple: [Atlanta, hasPublicTransitSystem, Metropolitan Atlanta Rapid Transit Authority (MARTA)]
Generated description
The Metropolitan Atlanta Rapid Transit Authority (MARTA) is the primary public transportation agency serving the Atlanta metropolitan area, operating a network of heavy rail, bus, and paratransit services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Metropolitan Atlanta Rapid Transit Authority (MARTA)
Target entity description: The Metropolitan Atlanta Rapid Transit Authority (MARTA) is the primary public transportation agency serving the Atlanta metropolitan area, operating a network of heavy rail, bus, and paratransit services.
  • A. Washington Metropolitan Area Transit Authority
    The Washington Metropolitan Area Transit Authority is the agency that manages public transportation services, including Metrorail and Metrobus, in the Washington, D.C. metropolitan region.
  • B. MBTA
    The MBTA (Massachusetts Bay Transportation Authority) is the public transit agency that operates subway, bus, commuter rail, and ferry services in the Greater Boston area.
  • C. Metropolitan Transportation Authority
    The Metropolitan Transportation Authority is the public agency responsible for operating and overseeing much of the mass transit and commuter rail systems in the New York City metropolitan area.
  • D. Atlanta BeltLine
    The Atlanta BeltLine is a major urban redevelopment project transforming a former railway corridor into a network of multi-use trails, parks, and transit encircling Atlanta’s core neighborhoods.
  • E. Tompkins Consolidated Area Transit
    Tompkins Consolidated Area Transit is the primary public bus system serving Ithaca and the surrounding Tompkins County region in New York.
  • 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_69a2520c0f3481908b0ed054a2fca8d0 completed Feb. 28, 2026, 2:25 a.m.
NER Named-entity recognition batch_69a25763ccf8819094e8dffb2ff98480 completed Feb. 28, 2026, 2:48 a.m.
NED1 Entity disambiguation (via context triple) batch_69a2a3d5c7bc8190ba8b36db41a1a57f completed Feb. 28, 2026, 8:14 a.m.
NEDg Description generation batch_69a2a4f0e7c081908966789fd07e59a2 completed Feb. 28, 2026, 8:18 a.m.
NED2 Entity disambiguation (via description) batch_69a2a58757d081908c7c5469c485f1cc completed Feb. 28, 2026, 8:21 a.m.
Created at: Feb. 28, 2026, 2:30 a.m.