Triple

T589753
Position Surface form Disambiguated ID Type / Status
Subject Central Subway E17240 entity
Predicate hasTerminus P388 FINISHED
Object 4th and King station
4th and King station is a major San Francisco Caltrain terminal and transit hub located near the city's South of Market district.
 E74912 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: 4th and King station | Statement: [Central Subway, hasTerminus, 4th and King station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: 4th and King station
Context triple: [Central Subway, hasTerminus, 4th and King station]
  • A. Brigham Circle station
    Brigham Circle station is a light rail stop on the MBTA Green Line E branch located in Boston’s Mission Hill neighborhood.
  • B. 36th Street station
    36th Street station is a key SEPTA trolley stop in Philadelphia serving the Subway–Surface Trolley Lines near the University of Pennsylvania.
  • C. 33rd Street station
    33rd Street station is a major underground trolley stop in Philadelphia serving SEPTA’s Subway–Surface lines near Drexel University and the University of Pennsylvania.
  • D. 37th Street station
    37th Street station is a Philadelphia trolley stop on SEPTA’s Subway–Surface Lines serving the University City area near the University of Pennsylvania.
  • E. Montgomery Street station
    Montgomery Street station is a major Bay Area Rapid Transit (BART) and Muni Metro subway station serving downtown San Francisco’s Financial District.
  • 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: 4th and King station
Triple: [Central Subway, hasTerminus, 4th and King station]
Generated description
4th and King station is a major San Francisco Caltrain terminal and transit hub located near the city's South of Market district.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: 4th and King station
Target entity description: 4th and King station is a major San Francisco Caltrain terminal and transit hub located near the city's South of Market district.
  • A. Brigham Circle station
    Brigham Circle station is a light rail stop on the MBTA Green Line E branch located in Boston’s Mission Hill neighborhood.
  • B. 36th Street station
    36th Street station is a key SEPTA trolley stop in Philadelphia serving the Subway–Surface Trolley Lines near the University of Pennsylvania.
  • C. 33rd Street station
    33rd Street station is a major underground trolley stop in Philadelphia serving SEPTA’s Subway–Surface lines near Drexel University and the University of Pennsylvania.
  • D. 37th Street station
    37th Street station is a Philadelphia trolley stop on SEPTA’s Subway–Surface Lines serving the University City area near the University of Pennsylvania.
  • E. Montgomery Street station
    Montgomery Street station is a major Bay Area Rapid Transit (BART) and Muni Metro subway station serving downtown San Francisco’s Financial District.
  • 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_69a49379d09c8190ac7e00b24e2810b1 completed March 1, 2026, 7:28 p.m.
NER Named-entity recognition batch_69a49bb775fc819085b968f8615dca59 completed March 1, 2026, 8:04 p.m.
NED1 Entity disambiguation (via context triple) batch_69a51f33e59c8190b3593b8460411fba completed March 2, 2026, 5:25 a.m.
NEDg Description generation batch_69a520147c808190b3f812cd439f3615 completed March 2, 2026, 5:28 a.m.
NED2 Entity disambiguation (via description) batch_69a52086c2bc81909ba39c2dc0b2ab58 completed March 2, 2026, 5:30 a.m.
Created at: March 1, 2026, 7:33 p.m.