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.