Triple

T17716876
Position Surface form Disambiguated ID Type / Status
Subject North Concord/Martinez station E442221 entity
Predicate isPartOfCorridor P35 FINISHED
Object Antioch–San Francisco/Millbrae corridor
The Antioch–San Francisco/Millbrae corridor is a Bay Area Rapid Transit (BART) service corridor linking eastern Contra Costa County with San Francisco and the Peninsula, including Millbrae.
E1205623 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: Antioch–San Francisco/Millbrae corridor | Statement: [North Concord/Martinez station, isPartOfCorridor, Antioch–San Francisco/Millbrae corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Antioch–San Francisco/Millbrae corridor
Context triple: [North Concord/Martinez station, isPartOfCorridor, Antioch–San Francisco/Millbrae corridor]
  • A. South Bay–East Bay commute corridor
    The South Bay–East Bay commute corridor is a major regional travel route in the San Francisco Bay Area connecting residential and employment centers between the South Bay and East Bay.
  • B. East Bay BART corridor
    The East Bay BART corridor is a major rapid transit route running through the eastern side of the San Francisco Bay Area, connecting multiple cities via Bay Area Rapid Transit.
  • C. South San Francisco–East Bay route
    The South San Francisco–East Bay route is a San Francisco Bay Ferry commuter and transit service connecting South San Francisco with cities on the East Bay shoreline across the San Francisco Bay.
  • D. Vallejo–San Francisco route
    The Vallejo–San Francisco route is a commuter and leisure passenger ferry service across San Pablo Bay linking the city of Vallejo with San Francisco.
  • E. San Francisco–San Jose corridor
    The San Francisco–San Jose corridor is a heavily urbanized and economically vital stretch of the San Francisco Peninsula that links the two major Bay Area cities and encompasses much of Silicon Valley.
  • 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: Antioch–San Francisco/Millbrae corridor
Triple: [North Concord/Martinez station, isPartOfCorridor, Antioch–San Francisco/Millbrae corridor]
Generated description
The Antioch–San Francisco/Millbrae corridor is a Bay Area Rapid Transit (BART) service corridor linking eastern Contra Costa County with San Francisco and the Peninsula, including Millbrae.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Antioch–San Francisco/Millbrae corridor
Target entity description: The Antioch–San Francisco/Millbrae corridor is a Bay Area Rapid Transit (BART) service corridor linking eastern Contra Costa County with San Francisco and the Peninsula, including Millbrae.
  • A. South Bay–East Bay commute corridor
    The South Bay–East Bay commute corridor is a major regional travel route in the San Francisco Bay Area connecting residential and employment centers between the South Bay and East Bay.
  • B. East Bay BART corridor chosen
    The East Bay BART corridor is a major rapid transit route running through the eastern side of the San Francisco Bay Area, connecting multiple cities via Bay Area Rapid Transit.
  • C. South San Francisco–East Bay route
    The South San Francisco–East Bay route is a San Francisco Bay Ferry commuter and transit service connecting South San Francisco with cities on the East Bay shoreline across the San Francisco Bay.
  • D. Vallejo–San Francisco route
    The Vallejo–San Francisco route is a commuter and leisure passenger ferry service across San Pablo Bay linking the city of Vallejo with San Francisco.
  • E. San Francisco–San Jose corridor
    The San Francisco–San Jose corridor is a heavily urbanized and economically vital stretch of the San Francisco Peninsula that links the two major Bay Area cities and encompasses much of Silicon Valley.
  • 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_69d8b9ec79688190b86bdcef85a7b3aa completed April 10, 2026, 8:50 a.m.
NER Named-entity recognition batch_69e47481663c8190a1110385e5596ab0 completed April 19, 2026, 6:21 a.m.
NED1 Entity disambiguation (via context triple) batch_6a02302bd9b08190979ee441035b17bb completed May 11, 2026, 7:38 p.m.
NEDg Description generation batch_6a023192ea9c819096bf6ed8952f21c4 completed May 11, 2026, 7:44 p.m.
NED2 Entity disambiguation (via description) batch_6a02321a9c6c8190a86ebfdcfa32f786 completed May 11, 2026, 7:46 p.m.
Created at: April 10, 2026, 10:06 a.m.