Triple

T960257
Position Surface form Disambiguated ID Type / Status
Subject California Zephyr E20719 entity
Predicate endStation P3569 FINISHED
Object Emeryville station
Emeryville station is a major Amtrak rail terminal in Emeryville, California, serving as the primary San Francisco–area hub and western terminus for long-distance routes like the California Zephyr.
 E127020 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: Emeryville station | Statement: [California Zephyr, endStation, Emeryville station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Emeryville station
Context triple: [California Zephyr, endStation, Emeryville station]
  • A. Millbrae station
    Millbrae station is a major intermodal transit hub in Millbrae, California, serving as a connection point between Caltrain commuter rail, BART rapid transit, and other local transportation services.
  • B. Downtown Berkeley station
    Downtown Berkeley station is a major underground Bay Area Rapid Transit (BART) stop serving the commercial core and university area of Berkeley, California.
  • C. San Francisco International Airport station
    San Francisco International Airport station is a Bay Area Rapid Transit (BART) rail station that directly serves San Francisco International Airport, providing regional transit connections for air travelers.
  • D. Mountain View station
    Mountain View station is a commuter rail stop in Mountain View, California, serving as a key transit hub on the Caltrain line and connecting to local light rail and bus services.
  • E. San Jose Diridon station
    San Jose Diridon station is a major intermodal transit hub in San Jose, California, serving commuter rail, intercity rail, light rail, and bus services.
  • 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: Emeryville station
Triple: [California Zephyr, endStation, Emeryville station]
Generated description
Emeryville station is a major Amtrak rail terminal in Emeryville, California, serving as the primary San Francisco–area hub and western terminus for long-distance routes like the California Zephyr.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Emeryville station
Target entity description: Emeryville station is a major Amtrak rail terminal in Emeryville, California, serving as the primary San Francisco–area hub and western terminus for long-distance routes like the California Zephyr.
  • A. Millbrae station
    Millbrae station is a major intermodal transit hub in Millbrae, California, serving as a connection point between Caltrain commuter rail, BART rapid transit, and other local transportation services.
  • B. Downtown Berkeley station
    Downtown Berkeley station is a major underground Bay Area Rapid Transit (BART) stop serving the commercial core and university area of Berkeley, California.
  • C. San Francisco International Airport station
    San Francisco International Airport station is a Bay Area Rapid Transit (BART) rail station that directly serves San Francisco International Airport, providing regional transit connections for air travelers.
  • D. Mountain View station
    Mountain View station is a commuter rail stop in Mountain View, California, serving as a key transit hub on the Caltrain line and connecting to local light rail and bus services.
  • E. San Jose Diridon station
    San Jose Diridon station is a major intermodal transit hub in San Jose, California, serving commuter rail, intercity rail, light rail, and bus services.
  • 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_69a493b21f2881908132dcf45dcd2f36 completed March 1, 2026, 7:29 p.m.
NER Named-entity recognition batch_69a4b412f9f48190be123e8c20f38962 completed March 1, 2026, 9:48 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac4c0508348190b761b1cb40fd2ebc completed March 7, 2026, 4:02 p.m.
NEDg Description generation batch_69ac4d59d6e48190ae584c5505d583e2 completed March 7, 2026, 4:07 p.m.
NED2 Entity disambiguation (via description) batch_69ac4dc518cc8190a8eafd2eef7934d8 completed March 7, 2026, 4:09 p.m.
Created at: March 1, 2026, 7:40 p.m.