Triple

T6046761
Position Surface form Disambiguated ID Type / Status
Subject Civic Center/UN Plaza station E134684 entity
Predicate hasService P182 FINISHED
Object BART Blue Line
The BART Blue Line is a Bay Area Rapid Transit service route that runs through San Francisco and the greater Bay Area, connecting key urban centers and regional destinations.
 E582310 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: BART Blue Line | Statement: [Civic Center/UN Plaza station, hasService, BART Blue Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: BART Blue Line
Context triple: [Civic Center/UN Plaza station, hasService, BART Blue Line]
  • A. BART Green Line
    The BART Green Line is a Bay Area Rapid Transit service route that operates trains through the South Bay, including stops such as Berryessa/North San José station.
  • B. BART Orange Line
    The BART Orange Line is a Bay Area Rapid Transit service route that runs through the East Bay and South Bay, connecting cities such as Richmond, Oakland, and San José.
  • C. BART Red Line
    The BART Red Line is a Bay Area Rapid Transit service route that runs through San Francisco and connects key destinations including downtown San Francisco, Oakland, and other parts of the Bay Area.
  • D. BART Yellow Line
    The BART Yellow Line is a Bay Area Rapid Transit route that runs through key stations including Civic Center/UN Plaza, connecting San Francisco with the East Bay and beyond.
  • E. BART Fremont line
    The BART Fremont line is a Bay Area Rapid Transit route in the San Francisco Bay Area that historically extended service to the city of Fremont in southern Alameda County.
  • 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: BART Blue Line
Triple: [Civic Center/UN Plaza station, hasService, BART Blue Line]
Generated description
The BART Blue Line is a Bay Area Rapid Transit service route that runs through San Francisco and the greater Bay Area, connecting key urban centers and regional destinations.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: BART Blue Line
Target entity description: The BART Blue Line is a Bay Area Rapid Transit service route that runs through San Francisco and the greater Bay Area, connecting key urban centers and regional destinations.
  • A. BART Green Line
    The BART Green Line is a Bay Area Rapid Transit service route that operates trains through the South Bay, including stops such as Berryessa/North San José station.
  • B. BART Orange Line
    The BART Orange Line is a Bay Area Rapid Transit service route that runs through the East Bay and South Bay, connecting cities such as Richmond, Oakland, and San José.
  • C. BART Red Line
    The BART Red Line is a Bay Area Rapid Transit service route that runs through San Francisco and connects key destinations including downtown San Francisco, Oakland, and other parts of the Bay Area.
  • D. BART Yellow Line
    The BART Yellow Line is a Bay Area Rapid Transit route that runs through key stations including Civic Center/UN Plaza, connecting San Francisco with the East Bay and beyond.
  • E. BART Fremont line
    The BART Fremont line is a Bay Area Rapid Transit route in the San Francisco Bay Area that historically extended service to the city of Fremont in southern Alameda County.
  • 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_69c00876a69881908088a2626d3b2666 completed March 22, 2026, 3:19 p.m.
NER Named-entity recognition batch_69c056e53f508190864be04bc016c525 completed March 22, 2026, 8:53 p.m.
NED1 Entity disambiguation (via context triple) batch_69c518ccee748190a0e292bc18b552f8 completed March 26, 2026, 11:30 a.m.
NEDg Description generation batch_69c52d49889c819096580c737231a765 completed March 26, 2026, 12:57 p.m.
NED2 Entity disambiguation (via description) batch_69c58eb539a481909c5a279c1047cfd3 completed March 26, 2026, 7:53 p.m.
Created at: March 22, 2026, 4:09 p.m.