Triple
T7048539
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Vermonter |
E163704
|
entity |
| Predicate | usesRollingStock |
P5426
|
FINISHED |
| Object | Amtrak café car |
E40155
|
NE FINISHED |
How this triple was built (2 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: Amtrak café car | Statement: [Vermonter, usesRollingStock, Amtrak café car]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amtrak café car Context triple: [Vermonter, usesRollingStock, Amtrak café car]
-
A.
Amtrak California bi-level coaches
Amtrak California bi-level coaches are double-decker passenger railcars used on California’s state-supported Amtrak routes, designed to provide high-capacity, comfortable intercity service with features tailored to regional corridor operations.
-
B.
Amfleet cafe car
chosen
The Amfleet cafe car is a type of Amtrak passenger railcar equipped with a food-service area and seating, commonly used on intercity routes in the United States.
-
C.
Amtrak single-level passenger cars
Amtrak single-level passenger cars are intercity rail coaches designed for use on routes without height restrictions, featuring standard- and business-class seating, baggage and dining facilities, and compatibility with various Amtrak locomotive-hauled trains.
-
D.
Amtrak Metropolitan Lounge
The Amtrak Metropolitan Lounge is a premium waiting area in Chicago Union Station offering comfortable seating, complimentary refreshments, and enhanced services for select Amtrak passengers.
-
E.
Amtrak Superliner
The Amtrak Superliner is a bi-level long-distance passenger railcar fleet used across many of Amtrak’s premier intercity routes in the United States.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69c6885f598c8190b6b6495c59d8d962 |
completed | March 27, 2026, 1:38 p.m. |
| NER | Named-entity recognition | batch_69c6e24c4004819086002bfe55502374 |
completed | March 27, 2026, 8:02 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c7888497b08190b1f2aa686e8e30c1 |
completed | March 28, 2026, 7:51 a.m. |
Created at: March 27, 2026, 2:37 p.m.