Triple

T960259
Position Surface form Disambiguated ID Type / Status
Subject California Zephyr E20719 entity
Predicate previousTerminus P388 FINISHED
Object San Francisco (via ferry and bus connections)
San Francisco (via ferry and bus connections) refers to the historical western endpoint of the California Zephyr route, where passengers transferred from trains to ferries and buses to reach the city of San Francisco.
 E113443 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 (via ferry and bus connections) | Statement: [California Zephyr, previousTerminus, San Francisco (via ferry and bus connections)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: San Francisco (via ferry and bus connections)
Context triple: [California Zephyr, previousTerminus, San Francisco (via ferry and bus connections)]
  • A. San Francisco Bay Ferry
    San Francisco Bay Ferry is a public ferry service that operates passenger routes across the San Francisco Bay, connecting various waterfront cities and transit hubs in the Bay Area.
  • B. Downtown San Francisco
    Downtown San Francisco is the city’s central urban core, known for its dense mix of financial, commercial, and historic neighborhoods, including iconic hilltop districts and major cultural landmarks.
  • C. SamTrans
    SamTrans is the public bus and paratransit agency serving San Mateo County and parts of the San Francisco Bay Area.
  • D. Paso de San Francisco
    Paso de San Francisco is a high-altitude Andean mountain pass on the Argentina–Chile border, known as a key access route to the Ojos del Salado volcano and surrounding desert landscapes.
  • E. San Francisco Muni
    San Francisco Muni is the primary public transportation system in San Francisco, operating the city’s network of buses, light rail, historic streetcars, and cable cars.
  • 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 (via ferry and bus connections)
Triple: [California Zephyr, previousTerminus, San Francisco (via ferry and bus connections)]
Generated description
San Francisco (via ferry and bus connections) refers to the historical western endpoint of the California Zephyr route, where passengers transferred from trains to ferries and buses to reach the city of San Francisco.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: San Francisco (via ferry and bus connections)
Target entity description: San Francisco (via ferry and bus connections) refers to the historical western endpoint of the California Zephyr route, where passengers transferred from trains to ferries and buses to reach the city of San Francisco.
  • A. San Francisco Bay Ferry
    San Francisco Bay Ferry is a public ferry service that operates passenger routes across the San Francisco Bay, connecting various waterfront cities and transit hubs in the Bay Area.
  • B. Downtown San Francisco
    Downtown San Francisco is the city’s central urban core, known for its dense mix of financial, commercial, and historic neighborhoods, including iconic hilltop districts and major cultural landmarks.
  • C. SamTrans
    SamTrans is the public bus and paratransit agency serving San Mateo County and parts of the San Francisco Bay Area.
  • D. Paso de San Francisco
    Paso de San Francisco is a high-altitude Andean mountain pass on the Argentina–Chile border, known as a key access route to the Ojos del Salado volcano and surrounding desert landscapes.
  • E. San Francisco Muni
    San Francisco Muni is the primary public transportation system in San Francisco, operating the city’s network of buses, light rail, historic streetcars, and cable cars.
  • 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_69a4b74fc204819083dbed5c19c4bc15 completed March 1, 2026, 10:01 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac11a3f8c481908f9ed37c44788cb7 completed March 7, 2026, 11:53 a.m.
NEDg Description generation batch_69ac1339634c8190b83c39db30fc78b1 completed March 7, 2026, 11:59 a.m.
NED2 Entity disambiguation (via description) batch_69ac13931cf081908de84000f7b037fc completed March 7, 2026, 12:01 p.m.
Created at: March 1, 2026, 7:40 p.m.