Triple

T4431518
Position Surface form Disambiguated ID Type / Status
Subject San Clemente Pier station E95340 entity
Predicate railwayLine P848 FINISHED
Object Pacific Surfliner route
The Pacific Surfliner route is a popular Amtrak passenger rail corridor along the Southern California coast, connecting cities such as San Diego, Los Angeles, and San Luis Obispo.
E440071 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: Pacific Surfliner route | Statement: [San Clemente Pier station, railwayLine, Pacific Surfliner route]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Pacific Surfliner route
Context triple: [San Clemente Pier station, railwayLine, Pacific Surfliner route]
  • A. 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.
  • B. Richmond–San Francisco route
    The Richmond–San Francisco route is a commuter and leisure ferry service across San Francisco Bay connecting the city of Richmond with San Francisco.
  • C. BNSF Southern Transcon
    The BNSF Southern Transcon is a major high-capacity freight rail corridor across the southern United States, serving as one of BNSF Railway’s primary routes for transcontinental intermodal and merchandise traffic.
  • 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. BNSF Scenic Subdivision
    The BNSF Scenic Subdivision is a major BNSF Railway line through Washington state’s Cascade Mountains, known for its steep grades, tunnels, and use by both freight and passenger trains.
  • 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: Pacific Surfliner route
Triple: [San Clemente Pier station, railwayLine, Pacific Surfliner route]
Generated description
The Pacific Surfliner route is a popular Amtrak passenger rail corridor along the Southern California coast, connecting cities such as San Diego, Los Angeles, and San Luis Obispo.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Pacific Surfliner route
Target entity description: The Pacific Surfliner route is a popular Amtrak passenger rail corridor along the Southern California coast, connecting cities such as San Diego, Los Angeles, and San Luis Obispo.
  • A. 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.
  • B. Richmond–San Francisco route
    The Richmond–San Francisco route is a commuter and leisure ferry service across San Francisco Bay connecting the city of Richmond with San Francisco.
  • C. BNSF Southern Transcon
    The BNSF Southern Transcon is a major high-capacity freight rail corridor across the southern United States, serving as one of BNSF Railway’s primary routes for transcontinental intermodal and merchandise traffic.
  • 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. BNSF Scenic Subdivision
    The BNSF Scenic Subdivision is a major BNSF Railway line through Washington state’s Cascade Mountains, known for its steep grades, tunnels, and use by both freight and passenger trains.
  • 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_69b3453c2a0c8190926b574c90766db9 completed March 12, 2026, 10:59 p.m.
NER Named-entity recognition batch_69b3556b71448190a3fab938853f8b87 completed March 13, 2026, 12:08 a.m.
NED1 Entity disambiguation (via context triple) batch_69b6136f350c81908d00eff850951ab0 completed March 15, 2026, 2:03 a.m.
NEDg Description generation batch_69b61439a86c8190849c5af718ddc647 completed March 15, 2026, 2:06 a.m.
NED2 Entity disambiguation (via description) batch_69b614d6106c81908a601f540622f934 completed March 15, 2026, 2:09 a.m.
Created at: March 12, 2026, 11:31 p.m.