Triple

T3578888
Position Surface form Disambiguated ID Type / Status
Subject Union Square/Market Street station E75752 entity
Predicate hasFarePaidZoneConnection P39868 FINISHED
Object Powell Street BART/Muni station
Powell Street BART/Muni station is a major underground transit hub in downtown San Francisco serving both BART regional rail and Muni Metro light rail lines near the Union Square and Market Street area.
E371034 NE FINISHED

How this triple was built (5 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: Powell Street BART/Muni station | Statement: [Union Square/Market Street station, hasFarePaidZoneConnection, Powell Street BART/Muni station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Powell Street BART/Muni station
Context triple: [Union Square/Market Street station, hasFarePaidZoneConnection, Powell Street BART/Muni station]
  • A. 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.
  • 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. 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.
  • D. Lake Merritt BART station
    Lake Merritt BART station is an underground Bay Area Rapid Transit station in Oakland, California, serving the Lake Merritt neighborhood and nearby civic and residential areas.
  • E. 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.
  • 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: Powell Street BART/Muni station
Triple: [Union Square/Market Street station, hasFarePaidZoneConnection, Powell Street BART/Muni station]
Generated description
Powell Street BART/Muni station is a major underground transit hub in downtown San Francisco serving both BART regional rail and Muni Metro light rail lines near the Union Square and Market Street area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Powell Street BART/Muni station
Target entity description: Powell Street BART/Muni station is a major underground transit hub in downtown San Francisco serving both BART regional rail and Muni Metro light rail lines near the Union Square and Market Street area.
  • A. 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.
  • 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. 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.
  • D. Lake Merritt BART station
    Lake Merritt BART station is an underground Bay Area Rapid Transit station in Oakland, California, serving the Lake Merritt neighborhood and nearby civic and residential areas.
  • E. 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.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: hasFarePaidZoneConnection
Context triple: [Union Square/Market Street station, hasFarePaidZoneConnection, Powell Street BART/Muni station]
  • A. hasFarePaidArea chosen
    Indicates that an entity includes or is associated with a zone where access is restricted to users who have paid a fare.
  • B. hasFareZone
    Indicates that an entity is located within or associated with a specific fare zone used for pricing or ticketing.
  • C. hasFareZoneFeature
    Indicates that an entity is associated with a specific fare zone or fare-related area designation.
  • D. hasFormerFareZone
    Indicates that an entity was previously assigned to a particular fare zone, but is no longer in that fare zone.
  • E. hasFareZoneCode
    Indicates that an entity is associated with a specific fare zone identifier used for pricing or tariff purposes.
  • F. None of above.

Provenance (6 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_69ad85d5e3008190bdfe0bacdd1f5a1b completed March 8, 2026, 2:21 p.m.
NER Named-entity recognition batch_69adc0defe14819095a337a840e33300 completed March 8, 2026, 6:33 p.m.
NED1 Entity disambiguation (via context triple) batch_69b402ef79e481909acd5d96678bc003 completed March 13, 2026, 12:28 p.m.
NEDg Description generation batch_69b4039ebeb88190b3e2e87621939391 completed March 13, 2026, 12:31 p.m.
NED2 Entity disambiguation (via description) batch_69b4086f6da4819084778dffa33ef116 completed March 13, 2026, 12:51 p.m.
PD Predicate disambiguation batch_69adb83810c481909c645c08b978edc1 completed March 8, 2026, 5:56 p.m.
Created at: March 8, 2026, 3:21 p.m.