Triple

T23158690
Position Surface form Disambiguated ID Type / Status
Subject BART Yellow Line E578519 entity
Predicate servesCity P82 FINISHED
Object San Francisco
San Francisco is a major coastal city in Northern California known for its iconic Golden Gate Bridge, steep hills, diverse culture, and historic cable cars.
 E242 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: San Francisco | Statement: [BART Yellow Line, servesCity, San Francisco]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: San Francisco
Context triple: [BART Yellow Line, servesCity, San Francisco]
  • A. San Francisco
    San Francisco is a coastal neighborhood of the city of Telde in Gran Canaria, Spain, known for its traditional Canarian architecture and historic character.
  • B. San Francisco
    San Francisco is a coastal municipality in the province of Southern Leyte in the Philippines, known for its rural communities and proximity to the Bohol Sea.
  • C. San Francisco
    San Francisco is a coastal municipality in the Philippine province of Surigao del Norte, known for its island landscapes and fishing communities.
  • D. San Francisco
    San Francisco is a town located in the Atlántida Department on the northern Caribbean coast of Honduras.
  • E. San Francisco
    San Francisco is a municipality in the Philippine province of Quezon known for its rural communities and agricultural economy.
  • 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: San Francisco
Triple: [BART Yellow Line, servesCity, San Francisco]
Generated description
San Francisco is a major coastal city in Northern California known for its iconic Golden Gate Bridge, steep hills, diverse culture, and historic cable cars.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: San Francisco
Target entity description: San Francisco is a major coastal city in Northern California known for its iconic Golden Gate Bridge, steep hills, diverse culture, and historic cable cars.
  • A. San Francisco chosen
    San Francisco is a major coastal city in Northern California known for its hilly landscape, iconic Golden Gate Bridge, and role as a historic center of technology and counterculture.
  • B. San Francisco
    San Francisco is a coastal municipality in the Philippine province of Surigao del Norte, known for its island landscapes and fishing communities.
  • C. San Francisco
    San Francisco is a coastal neighborhood of the city of Telde in Gran Canaria, Spain, known for its traditional Canarian architecture and historic character.
  • D. San Francisco
    San Francisco is a coastal municipality in the province of Southern Leyte in the Philippines, known for its rural communities and proximity to the Bohol Sea.
  • E. San Francisco
    San Francisco is a municipality in the Philippine province of Quezon known for its rural communities and agricultural economy.
  • F. None of above.

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_69e245fc75348190a0288401044c8af8 completed April 17, 2026, 2:38 p.m.
NER Named-entity recognition batch_69f18efeddd48190b6d03d2146583dcc completed April 29, 2026, 4:54 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0c3083cccc81908a149776c6986f1a completed May 19, 2026, 9:42 a.m.
NEDg Description generation batch_6a0c319e347c8190b28725e2b7a98e28 completed May 19, 2026, 9:47 a.m.
NED2 Entity disambiguation (via description) batch_6a0c320cef488190aedfe84c27e91d40 completed May 19, 2026, 9:49 a.m.
Created at: April 17, 2026, 4:02 p.m.