Triple

T15450715
Position Surface form Disambiguated ID Type / Status
Subject San Francisco Central Subway project E370141 entity
Predicate benefit P487 FINISHED
Object improved transit access to Union Square
Improved transit access to Union Square refers to enhanced public transportation connections that make it easier, faster, and more convenient for people to reach San Francisco’s Union Square area.
E1157238 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: improved transit access to Union Square | Statement: [San Francisco Central Subway project, benefit, improved transit access to Union Square]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: improved transit access to Union Square
Context triple: [San Francisco Central Subway project, benefit, improved transit access to Union Square]
  • A. Muni Metro at Embarcadero Station
    Muni Metro at Embarcadero Station is a major San Francisco light rail hub located in the Financial District, serving multiple Muni Metro lines and connecting to regional transit services.
  • B. Connect Transit
    Connect Transit is the primary public bus system serving the Bloomington–Normal metropolitan area in Illinois.
  • C. Union Square (part)
    Union Square (part) is a section of the historic and bustling Union Square area in Manhattan, known for its public park, vibrant street life, and central role as a commercial and transportation hub.
  • D. Muni Metro at Montgomery Street station
    Muni Metro at Montgomery Street station is a light rail subway stop in downtown San Francisco that serves multiple Muni Metro lines and connects with regional BART service.
  • E. UCSF Mission Bay Station
    UCSF Mission Bay Station is a light rail stop on San Francisco’s T Third Street line serving the UCSF Mission Bay campus and surrounding neighborhood.
  • 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: improved transit access to Union Square
Triple: [San Francisco Central Subway project, benefit, improved transit access to Union Square]
Generated description
Improved transit access to Union Square refers to enhanced public transportation connections that make it easier, faster, and more convenient for people to reach San Francisco’s Union Square area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: improved transit access to Union Square
Target entity description: Improved transit access to Union Square refers to enhanced public transportation connections that make it easier, faster, and more convenient for people to reach San Francisco’s Union Square area.
  • A. Muni Metro at Embarcadero Station
    Muni Metro at Embarcadero Station is a major San Francisco light rail hub located in the Financial District, serving multiple Muni Metro lines and connecting to regional transit services.
  • B. Connect Transit
    Connect Transit is the primary public bus system serving the Bloomington–Normal metropolitan area in Illinois.
  • C. Union Square (part)
    Union Square (part) is a section of the historic and bustling Union Square area in Manhattan, known for its public park, vibrant street life, and central role as a commercial and transportation hub.
  • D. Muni Metro at Montgomery Street station
    Muni Metro at Montgomery Street station is a light rail subway stop in downtown San Francisco that serves multiple Muni Metro lines and connects with regional BART service.
  • E. UCSF Mission Bay Station
    UCSF Mission Bay Station is a light rail stop on San Francisco’s T Third Street line serving the UCSF Mission Bay campus and surrounding neighborhood.
  • 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_69d85a19180081909925012fbf4e62a3 completed April 10, 2026, 2:02 a.m.
NER Named-entity recognition batch_69e03efaf82c81908b464e37ce9c159a completed April 16, 2026, 1:44 a.m.
NED1 Entity disambiguation (via context triple) batch_69ff21b1e9688190a283dbc552072ce0 completed May 9, 2026, 11:59 a.m.
NEDg Description generation batch_69ff22b9c980819093e05036ba21eaf0 completed May 9, 2026, 12:04 p.m.
NED2 Entity disambiguation (via description) batch_69ff2339ae808190bf2d4676215399c0 completed May 9, 2026, 12:06 p.m.
Created at: April 10, 2026, 3:21 a.m.