Triple

T1068308
Position Surface form Disambiguated ID Type / Status
Subject Palo Alto station E23264 entity
Predicate isOneOfBusiestStationsOn P15948 FINISHED
Object Caltrain E1530 NE FINISHED

How this triple was built (3 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: Caltrain | Statement: [Palo Alto station, isOneOfBusiestStationsOn, Caltrain]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Caltrain
Context triple: [Palo Alto station, isOneOfBusiestStationsOn, Caltrain]
  • A. Caltrain chosen
    Caltrain is a commuter rail service on the San Francisco Peninsula and in the Santa Clara Valley, connecting San Francisco to San Jose and Gilroy in California.
  • B. Altamont Corridor Express
    Altamont Corridor Express is a commuter rail service in Northern California that connects Central Valley communities with the San Francisco Bay Area.
  • C. BART
    BART (Bay Area Rapid Transit) is a major rapid transit system serving the San Francisco Bay Area, linking cities like San Francisco, Oakland, and Berkeley with surrounding suburbs and regional transit networks.
  • D. Amtrak Capitol Corridor
    Amtrak Capitol Corridor is a passenger rail service in Northern California that connects Sacramento, the San Francisco Bay Area, and San Jose with frequent, commuter-oriented trains.
  • E. Amtrak California
    Amtrak California is a state-supported intercity passenger rail program in California that oversees and brands several regional Amtrak routes, including the Capitol Corridor, San Joaquins, and Pacific Surfliner.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: isOneOfBusiestStationsOn
Context triple: [Palo Alto station, isOneOfBusiestStationsOn, Caltrain]
  • A. isOneOfBusiestStopsOn chosen
    Indicates that a stop ranks among the most heavily used or frequently served stops on a given route or line.
  • B. isBusiestStationIn
    Indicates that a station has the highest level of activity (e.g., passenger or traffic volume) within a specified area or system.
  • C. isBusiestPassengerRailLineIn
    Indicates that a passenger rail line is the one with the highest level of use or traffic within a specified geographic area or system.
  • D. hasRailStation
    Indicates that one entity possesses, contains, or is served by a rail station.
  • E. hasMajorRailwayStation
    Indicates that a place contains or is served by a principal railway station that functions as a major hub for rail transport.
  • F. None of above.

Provenance (4 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_69a493ee1f908190992b5f0d1b04459b completed March 1, 2026, 7:30 p.m.
NER Named-entity recognition batch_69a4b9e1047481909af1cf8df2a01fff completed March 1, 2026, 10:12 p.m.
NED1 Entity disambiguation (via context triple) batch_69acc60b052c8190bacb19f0fdc8059a completed March 8, 2026, 12:42 a.m.
PD Predicate disambiguation batch_69a4b736f1e881909bace735b38c0ade completed March 1, 2026, 10:01 p.m.
Created at: March 1, 2026, 7:42 p.m.