Triple

T3835791
Position Surface form Disambiguated ID Type / Status
Subject Berryessa/North San José–Richmond line E91128 entity
Predicate connectsStation P845 FINISHED
Object South Hayward station
South Hayward station is a Bay Area Rapid Transit (BART) station in Hayward, California, serving as a stop on the system’s East Bay lines.
 E393033 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: South Hayward station | Statement: [Berryessa/North San José–Richmond line, connectsStation, South Hayward station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: South Hayward station
Context triple: [Berryessa/North San José–Richmond line, connectsStation, South Hayward station]
  • A. Hinsdale station
    Hinsdale station is a historic commuter rail stop in Hinsdale, Illinois, serving passengers on Metra’s BNSF Railway Line between Chicago and its western suburbs.
  • B. Meadow Woods station
    Meadow Woods station is a commuter rail stop in the Orlando, Florida area served by the SunRail regional rail system.
  • C. 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.
  • D. Clark/Lake station
    Clark/Lake station is a major Chicago 'L' transit hub in the Loop where multiple CTA lines intersect, providing extensive connections across the city.
  • 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: South Hayward station
Triple: [Berryessa/North San José–Richmond line, connectsStation, South Hayward station]
Generated description
South Hayward station is a Bay Area Rapid Transit (BART) station in Hayward, California, serving as a stop on the system’s East Bay lines.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: South Hayward station
Target entity description: South Hayward station is a Bay Area Rapid Transit (BART) station in Hayward, California, serving as a stop on the system’s East Bay lines.
  • A. Hinsdale station
    Hinsdale station is a historic commuter rail stop in Hinsdale, Illinois, serving passengers on Metra’s BNSF Railway Line between Chicago and its western suburbs.
  • B. Meadow Woods station
    Meadow Woods station is a commuter rail stop in the Orlando, Florida area served by the SunRail regional rail system.
  • C. 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.
  • D. Clark/Lake station
    Clark/Lake station is a major Chicago 'L' transit hub in the Loop where multiple CTA lines intersect, providing extensive connections across the city.
  • 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.