Triple
T2332677
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Silver Meteor |
E44236
|
entity |
| Predicate | usesRollingStockType |
P1305
|
FINISHED |
| Object | Amfleet II coaches |
E39513
|
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: Amfleet II coaches | Statement: [Silver Meteor, usesRollingStockType, Amfleet II coaches]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amfleet II coaches Context triple: [Silver Meteor, usesRollingStockType, Amfleet II coaches]
-
A.
Amfleet II coaches
chosen
Amfleet II coaches are long-distance passenger railcars used by Amtrak, known for their single-level design, enhanced seating comfort, and use on overnight and extended-route services in the United States.
-
B.
Amfleet I coaches
Amfleet I coaches are single-level, tubular stainless-steel passenger railcars built by Budd in the 1970s for Amtrak’s short- to medium-distance corridor services, especially in the Northeastern United States.
-
C.
Shoreliner coaches
Shoreliner coaches are a type of commuter rail passenger car commonly used in the Northeastern United States, known for their bilevel-like high-capacity design and compatibility with push-pull train operations.
-
D.
Amfleet cafe car
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.
-
E.
Amfleet railcar family
The Amfleet railcar family is a series of stainless-steel, tubular passenger coaches built by Budd for Amtrak in the 1970s and 1980s, widely used on intercity and regional routes across 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_69a889132b488190bbb43ad4780ddd92 |
completed | March 4, 2026, 7:33 p.m. |
| NER | Named-entity recognition | batch_69abc66bd0f08190aad5f640cfa1c372 |
completed | March 7, 2026, 6:32 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ae89773c88819087a294d7c0f90f73 |
completed | March 9, 2026, 8:48 a.m. |
Created at: March 4, 2026, 7:51 p.m.