Triple

T4456369
Position Surface form Disambiguated ID Type / Status
Subject Warm Springs/South Fremont station E97734 entity
Predicate hasAdjacentStation P231 FINISHED
Object Fremont station (BART)
Fremont station (BART) is a Bay Area Rapid Transit station in Fremont, California that historically served as the southern terminus of the system’s Fremont line before extension to Warm Springs/South Fremont.
 E442223 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: Fremont station (BART) | Statement: [Warm Springs/South Fremont station, hasAdjacentStation, Fremont station (BART)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Fremont station (BART)
Context triple: [Warm Springs/South Fremont station, hasAdjacentStation, Fremont station (BART)]
  • A. Rockridge BART station
    Rockridge BART station is an elevated rapid transit station in Oakland, California, serving the Rockridge neighborhood on the Bay Area Rapid Transit system.
  • B. BART Embarcadero Station
    BART Embarcadero Station is a major underground transit hub in downtown San Francisco serving Bay Area Rapid Transit trains and connecting with Muni Metro light rail lines.
  • C. Antioch station (BART)
    Antioch station (BART) is the eastern terminus of Bay Area Rapid Transit's Yellow Line, providing regional rail service to the city of Antioch, California.
  • D. Civic Center/UN Plaza BART station
    Civic Center/UN Plaza BART station is a major underground Bay Area Rapid Transit and Muni Metro hub serving San Francisco’s Civic Center area near City Hall and the United Nations Plaza.
  • E. Bay Point BART station
    Bay Point BART station is an elevated rapid transit station in Contra Costa County that serves as the eastern terminus of BART’s Yellow Line in the San Francisco Bay Area.
  • 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: Fremont station (BART)
Triple: [Warm Springs/South Fremont station, hasAdjacentStation, Fremont station (BART)]
Generated description
Fremont station (BART) is a Bay Area Rapid Transit station in Fremont, California that historically served as the southern terminus of the system’s Fremont line before extension to Warm Springs/South Fremont.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Fremont station (BART)
Target entity description: Fremont station (BART) is a Bay Area Rapid Transit station in Fremont, California that historically served as the southern terminus of the system’s Fremont line before extension to Warm Springs/South Fremont.
  • A. Rockridge BART station
    Rockridge BART station is an elevated rapid transit station in Oakland, California, serving the Rockridge neighborhood on the Bay Area Rapid Transit system.
  • B. BART Embarcadero Station
    BART Embarcadero Station is a major underground transit hub in downtown San Francisco serving Bay Area Rapid Transit trains and connecting with Muni Metro light rail lines.
  • C. Antioch station (BART)
    Antioch station (BART) is the eastern terminus of Bay Area Rapid Transit's Yellow Line, providing regional rail service to the city of Antioch, California.
  • D. Civic Center/UN Plaza BART station
    Civic Center/UN Plaza BART station is a major underground Bay Area Rapid Transit and Muni Metro hub serving San Francisco’s Civic Center area near City Hall and the United Nations Plaza.
  • E. Bay Point BART station
    Bay Point BART station is an elevated rapid transit station in Contra Costa County that serves as the eastern terminus of BART’s Yellow Line in the San Francisco Bay Area.
  • 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_69b3454777808190b78aa9047ba1f018 completed March 12, 2026, 10:59 p.m.
NER Named-entity recognition batch_69b3564216b081908c41109100b36862 completed March 13, 2026, 12:11 a.m.
NED1 Entity disambiguation (via context triple) batch_69b6282743e08190a2c84f3b80c6d260 completed March 15, 2026, 3:31 a.m.
NEDg Description generation batch_69b62af29d3c81908cb82d142c2a55a4 completed March 15, 2026, 3:43 a.m.
NED2 Entity disambiguation (via description) batch_69b62ba4d6c88190b4eaacd09a0b2b66 completed March 15, 2026, 3:46 a.m.
Created at: March 12, 2026, 11:33 p.m.