Triple

T3835790
Position Surface form Disambiguated ID Type / Status
Subject Berryessa/North San José–Richmond line E91128 entity
Predicate connectsStation P845 FINISHED
Object Union City station
Union City station is a Bay Area Rapid Transit (BART) station in Union City, California, serving as a key stop on lines connecting the East Bay with other parts of the San Francisco Bay Area.
 E393032 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: Union City station | Statement: [Berryessa/North San José–Richmond line, connectsStation, Union City station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Union City station
Context triple: [Berryessa/North San José–Richmond line, connectsStation, Union City station]
  • A. Snyder station
    Snyder station is an underground rapid transit stop on SEPTA’s Broad Street Line serving South Philadelphia.
  • B. Forest Park station
    Forest Park station is a Chicago Transit Authority rapid transit station in Forest Park, Illinois, serving as the western endpoint of the Blue Line.
  • C. Pelham station
    Pelham station is a commuter rail stop in Pelham, New York, on the Metro-North Railroad's New Haven Line.
  • D. Newark station
    Newark station is a passenger rail station in Newark, Delaware, serving Amtrak and SEPTA regional rail services.
  • E. Fairview Heights station
    Fairview Heights station is a light rail stop in Inglewood, California, serving passengers on Los Angeles Metro's K Line.
  • 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: Union City station
Triple: [Berryessa/North San José–Richmond line, connectsStation, Union City station]
Generated description
Union City station is a Bay Area Rapid Transit (BART) station in Union City, California, serving as a key stop on lines connecting the East Bay with other parts of the San Francisco Bay Area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Union City station
Target entity description: Union City station is a Bay Area Rapid Transit (BART) station in Union City, California, serving as a key stop on lines connecting the East Bay with other parts of the San Francisco Bay Area.
  • A. Snyder station
    Snyder station is an underground rapid transit stop on SEPTA’s Broad Street Line serving South Philadelphia.
  • B. Forest Park station
    Forest Park station is a Chicago Transit Authority rapid transit station in Forest Park, Illinois, serving as the western endpoint of the Blue Line.
  • C. Pelham station
    Pelham station is a commuter rail stop in Pelham, New York, on the Metro-North Railroad's New Haven Line.
  • D. Newark station
    Newark station is a passenger rail station in Newark, Delaware, serving Amtrak and SEPTA regional rail services.
  • E. Fairview Heights station
    Fairview Heights station is a light rail stop in Inglewood, California, serving passengers on Los Angeles Metro's K Line.
  • 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_69aed960b538819096561c8ed448dec9 completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69aeeb9a27508190b05e5312cc7c8033 completed March 9, 2026, 3:47 p.m.
NED1 Entity disambiguation (via context triple) batch_69b50402b2448190aef242c46bf0546d completed March 14, 2026, 6:45 a.m.
NEDg Description generation batch_69b507da61e0819086a460e7ddfba4df completed March 14, 2026, 7:01 a.m.
NED2 Entity disambiguation (via description) batch_69b5082c6bb88190a9d2fd20e16c7cb7 completed March 14, 2026, 7:03 a.m.
Created at: March 9, 2026, 3:18 p.m.