Triple

T1003228
Position Surface form Disambiguated ID Type / Status
Subject Coast Starlight E21649 entity
Predicate usesCarType P1776 FINISHED
Object Pacific Parlour Car (historical)
The Pacific Parlour Car was a premium, lounge-style first-class railcar once used by Amtrak on its Coast Starlight route, known for its panoramic windows, comfortable seating, and enhanced onboard services.
E117839 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 Parlour Car (historical) | Statement: [Coast Starlight, usesCarType, Pacific Parlour Car (historical)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Pacific Parlour Car (historical)
Context triple: [Coast Starlight, usesCarType, Pacific Parlour Car (historical)]
  • A. PCC streetcar
    The PCC streetcar is a standardized, streamlined electric tram design introduced in the 1930s that became one of the most widely used and influential streetcar types in North America and beyond.
  • B. Cafe Racers
    Cafe Racers is a 1983 pop-rock album by American singer-songwriter Kim Carnes, featuring synth-driven production characteristic of early-1980s mainstream pop.
  • C. Holden Torana
    The Holden Torana is a mid-sized car produced by Australian manufacturer Holden from the late 1960s to late 1970s, best known for its high-performance variants that became icons of local motorsport and street culture.
  • D. Heritage Classic
    The Heritage Classic is an outdoor regular-season National Hockey League game held in Canada, celebrating the league’s roots with open-air matchups in iconic Canadian venues.
  • E. Peugeot 404
    The Peugeot 404 is a mid-20th-century French family car renowned for its Pininfarina-styled design, durability, and widespread use in Europe, Africa, and South America.
  • 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 Parlour Car (historical)
Triple: [Coast Starlight, usesCarType, Pacific Parlour Car (historical)]
Generated description
The Pacific Parlour Car was a premium, lounge-style first-class railcar once used by Amtrak on its Coast Starlight route, known for its panoramic windows, comfortable seating, and enhanced onboard services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Pacific Parlour Car (historical)
Target entity description: The Pacific Parlour Car was a premium, lounge-style first-class railcar once used by Amtrak on its Coast Starlight route, known for its panoramic windows, comfortable seating, and enhanced onboard services.
  • A. PCC streetcar
    The PCC streetcar is a standardized, streamlined electric tram design introduced in the 1930s that became one of the most widely used and influential streetcar types in North America and beyond.
  • B. Cafe Racers
    Cafe Racers is a 1983 pop-rock album by American singer-songwriter Kim Carnes, featuring synth-driven production characteristic of early-1980s mainstream pop.
  • C. Holden Torana
    The Holden Torana is a mid-sized car produced by Australian manufacturer Holden from the late 1960s to late 1970s, best known for its high-performance variants that became icons of local motorsport and street culture.
  • D. Heritage Classic
    The Heritage Classic is an outdoor regular-season National Hockey League game held in Canada, celebrating the league’s roots with open-air matchups in iconic Canadian venues.
  • E. Peugeot 404
    The Peugeot 404 is a mid-20th-century French family car renowned for its Pininfarina-styled design, durability, and widespread use in Europe, Africa, and South America.
  • 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_69a493c53e648190ae8cb76c433fd9a7 completed March 1, 2026, 7:30 p.m.
NER Named-entity recognition batch_69a4b7570b388190ada9693935792a58 completed March 1, 2026, 10:01 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac2a1ecddc8190b954d16c6e269498 completed March 7, 2026, 1:37 p.m.
NEDg Description generation batch_69ac2a8dd818819088e6140e9a12594b completed March 7, 2026, 1:39 p.m.
NED2 Entity disambiguation (via description) batch_69ac2af2efd88190b1da673aa3ead5fd completed March 7, 2026, 1:41 p.m.
Created at: March 1, 2026, 7:41 p.m.