Triple

T2048499
Position Surface form Disambiguated ID Type / Status
Subject Montgomery Street station E45508 entity
Predicate partOfLine P6309 FINISHED
Object Muni Metro K Ingleside line
The Muni Metro K Ingleside line is a light rail service in San Francisco that runs from downtown through the Twin Peaks Tunnel to the southwestern neighborhoods, including Ingleside.
 E238666 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: Muni Metro K Ingleside line | Statement: [Montgomery Street station, partOfLine, Muni Metro K Ingleside line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Muni Metro K Ingleside line
Context triple: [Montgomery Street station, partOfLine, Muni Metro K Ingleside line]
  • A. Muni Metro N Judah line
    The Muni Metro N Judah line is a light rail line in San Francisco that runs from downtown through neighborhoods like the Inner Sunset to the Outer Sunset near Ocean Beach.
  • B. Muni Metro line L
    Muni Metro line L is a light rail service in San Francisco that runs between downtown and the southwestern neighborhoods, including the Castro District and the Sunset District.
  • C. Muni Metro line S
    Muni Metro line S is a San Francisco light rail service that connects the Castro District with other parts of the city as part of the Muni Metro network.
  • D. Muni Metro T Third Street line
    The Muni Metro T Third Street line is a light rail service in San Francisco that runs along the city’s eastern waterfront, connecting neighborhoods from Visitacion Valley and Bayview to downtown and beyond.
  • E. Muni Metro J Church line
    The Muni Metro J Church line is a light rail service in San Francisco that runs from the downtown Market Street subway to the southern neighborhoods along Church Street.
  • 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: Muni Metro K Ingleside line
Triple: [Montgomery Street station, partOfLine, Muni Metro K Ingleside line]
Generated description
The Muni Metro K Ingleside line is a light rail service in San Francisco that runs from downtown through the Twin Peaks Tunnel to the southwestern neighborhoods, including Ingleside.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Muni Metro K Ingleside line
Target entity description: The Muni Metro K Ingleside line is a light rail service in San Francisco that runs from downtown through the Twin Peaks Tunnel to the southwestern neighborhoods, including Ingleside.
  • A. Muni Metro N Judah line
    The Muni Metro N Judah line is a light rail line in San Francisco that runs from downtown through neighborhoods like the Inner Sunset to the Outer Sunset near Ocean Beach.
  • B. Muni Metro line L
    Muni Metro line L is a light rail service in San Francisco that runs between downtown and the southwestern neighborhoods, including the Castro District and the Sunset District.
  • C. Muni Metro line S
    Muni Metro line S is a San Francisco light rail service that connects the Castro District with other parts of the city as part of the Muni Metro network.
  • D. Muni Metro T Third Street line
    The Muni Metro T Third Street line is a light rail service in San Francisco that runs along the city’s eastern waterfront, connecting neighborhoods from Visitacion Valley and Bayview to downtown and beyond.
  • E. Muni Metro J Church line
    The Muni Metro J Church line is a light rail service in San Francisco that runs from the downtown Market Street subway to the southern neighborhoods along Church Street.
  • 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_69a8891948208190ab7898da21824c77 completed March 4, 2026, 7:33 p.m.
NER Named-entity recognition batch_69abb98c70c48190beb98aad56d9daf1 completed March 7, 2026, 5:37 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae58c2cb688190ae3320bbf4e0dfa9 completed March 9, 2026, 5:21 a.m.
NEDg Description generation batch_69ae59b4f8188190bd0a09205233603c completed March 9, 2026, 5:25 a.m.
NED2 Entity disambiguation (via description) batch_69ae5a3079b08190ba25a44d4041f687 completed March 9, 2026, 5:27 a.m.
Created at: March 4, 2026, 7:39 p.m.