Triple

T16171769
Position Surface form Disambiguated ID Type / Status
Subject San Francisco International Airport AirTrain system E392455 entity
Predicate hasLine P35 FINISHED
Object Red Line
The Red Line is one of the automated people-mover routes within San Francisco International Airport’s AirTrain system, connecting terminals and key airport facilities.
E1204819 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: Red Line | Statement: [San Francisco International Airport AirTrain system, hasLine, Red Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Red Line
Context triple: [San Francisco International Airport AirTrain system, hasLine, Red Line]
  • A. Red Line
    The Red Line is a regional express bus route operated under the SolanoExpress system, providing intercity transit service in Solano County and surrounding areas.
  • B. Red Line
    The Red Line is one of the major corridors of the Delhi Metro rapid transit system, serving numerous densely populated areas in and around Delhi.
  • C. Red Line
    The Red Line is a primary route of the MetroLink light rail system serving key destinations in the St. Louis metropolitan area.
  • D. Red Line
    Red Line is one of the main rapid transit corridors of the Hyderabad Metro system in Hyderabad, India.
  • E. Red Line
    The Red Line is a light rail route in the Salt Lake City TRAX system that connects key destinations across the Salt Lake Valley.
  • 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: Red Line
Triple: [San Francisco International Airport AirTrain system, hasLine, Red Line]
Generated description
The Red Line is one of the automated people-mover routes within San Francisco International Airport’s AirTrain system, connecting terminals and key airport facilities.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Red Line
Target entity description: The Red Line is one of the automated people-mover routes within San Francisco International Airport’s AirTrain system, connecting terminals and key airport facilities.
  • A. Red Line
    The Red Line is a rapid transit route in the Greater Cleveland Regional Transit Authority system that connects Cleveland Hopkins International Airport with downtown and eastern suburbs.
  • B. Red Line
    Red Line is a major rapid transit route in the Washington Metro system, running through key areas of Washington, D.C., and its Maryland suburbs.
  • C. Red Line
    The Red Line is a major rapid transit route in the Boston metropolitan area, operated by the MBTA and running primarily north–south through key neighborhoods and suburbs.
  • D. Red Line
    The Red Line is a primary route of Pittsburgh’s light rail system, connecting downtown with several southern neighborhoods and suburbs.
  • E. Red Line
    The Red Line is one of the primary heavy-rail rapid transit routes in Atlanta’s MARTA system, running north–south and serving key destinations across the metropolitan area.
  • 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_69d87f1d32208190942e4e499a80c18c completed April 10, 2026, 4:39 a.m.
NER Named-entity recognition batch_69e21eb7ab1481908fc35bfc8c56e5f2 completed April 17, 2026, 11:51 a.m.
NED1 Entity disambiguation (via context triple) batch_6a001f83f6ac8190b9f18fe701a9b3ce completed May 10, 2026, 6:02 a.m.
NEDg Description generation batch_6a00203a93c4819080e5e1c5b345ba77 completed May 10, 2026, 6:05 a.m.
NED2 Entity disambiguation (via description) batch_6a0020bcdb388190be736469d1b78af8 completed May 10, 2026, 6:07 a.m.
Created at: April 10, 2026, 5:02 a.m.