Triple

T5219822
Position Surface form Disambiguated ID Type / Status
Subject Coast Daylight E117842 entity
Predicate railLineUsed P15040 FINISHED
Object SP Coast Line between Los Angeles and San Francisco
The SP Coast Line between Los Angeles and San Francisco is a historic Southern Pacific Railroad coastal route in California known for its scenic ocean views and passenger services such as the famed Coast Daylight.
E504062 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: SP Coast Line between Los Angeles and San Francisco | Statement: [Coast Daylight, railLineUsed, SP Coast Line between Los Angeles and San Francisco]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: SP Coast Line between Los Angeles and San Francisco
Context triple: [Coast Daylight, railLineUsed, SP Coast Line between Los Angeles and San Francisco]
  • A. West Coast Express
    West Coast Express is a commuter rail service in British Columbia, Canada, that operates weekday trains between downtown Vancouver and its eastern suburbs along the north shore of the Fraser River.
  • B. Los Angeles–New Orleans rail corridor
    The Los Angeles–New Orleans rail corridor is a major transcontinental rail route linking Southern California to the U.S. Gulf Coast, used for both freight and long-distance passenger service.
  • C. San Joaquins route
    The San Joaquins route is an Amtrak passenger rail service in California that connects the San Francisco Bay Area and Sacramento with the Central Valley and Bakersfield.
  • D. Alameda/Oakland–San Francisco route
    The Alameda/Oakland–San Francisco route is a commuter and tourist ferry service across San Francisco Bay connecting the East Bay cities of Alameda and Oakland with San Francisco.
  • E. Vallejo–San Francisco route
    The Vallejo–San Francisco route is a commuter and leisure passenger ferry service across San Pablo Bay linking the city of Vallejo with San Francisco.
  • 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: SP Coast Line between Los Angeles and San Francisco
Triple: [Coast Daylight, railLineUsed, SP Coast Line between Los Angeles and San Francisco]
Generated description
The SP Coast Line between Los Angeles and San Francisco is a historic Southern Pacific Railroad coastal route in California known for its scenic ocean views and passenger services such as the famed Coast Daylight.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: SP Coast Line between Los Angeles and San Francisco
Target entity description: The SP Coast Line between Los Angeles and San Francisco is a historic Southern Pacific Railroad coastal route in California known for its scenic ocean views and passenger services such as the famed Coast Daylight.
  • A. West Coast Express
    West Coast Express is a commuter rail service in British Columbia, Canada, that operates weekday trains between downtown Vancouver and its eastern suburbs along the north shore of the Fraser River.
  • B. Los Angeles–New Orleans rail corridor
    The Los Angeles–New Orleans rail corridor is a major transcontinental rail route linking Southern California to the U.S. Gulf Coast, used for both freight and long-distance passenger service.
  • C. San Joaquins route
    The San Joaquins route is an Amtrak passenger rail service in California that connects the San Francisco Bay Area and Sacramento with the Central Valley and Bakersfield.
  • D. Alameda/Oakland–San Francisco route
    The Alameda/Oakland–San Francisco route is a commuter and tourist ferry service across San Francisco Bay connecting the East Bay cities of Alameda and Oakland with San Francisco.
  • E. Vallejo–San Francisco route
    The Vallejo–San Francisco route is a commuter and leisure passenger ferry service across San Pablo Bay linking the city of Vallejo with San Francisco.
  • 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_69bd4465e03081909bfcfd7113062590 completed March 20, 2026, 12:58 p.m.
NER Named-entity recognition batch_69bd7ab6e63c8190964b2b65a0206134 completed March 20, 2026, 4:49 p.m.
NED1 Entity disambiguation (via context triple) batch_69beeff0b15081908741aadfd351811c completed March 21, 2026, 7:22 p.m.
NEDg Description generation batch_69bef309c230819094ed6ae3fefe6e5b completed March 21, 2026, 7:35 p.m.
NED2 Entity disambiguation (via description) batch_69bef36c88f4819082931dbe1bb13f89 completed March 21, 2026, 7:37 p.m.
Created at: March 20, 2026, 1:48 p.m.