Triple
T23317335
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Downeaster |
E590745
|
entity |
| Predicate | operatedBy |
P86
|
FINISHED |
| Object | National Railroad Passenger Corporation |
—
|
NE NERFINISHED |
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: National Railroad Passenger Corporation | Statement: [Downeaster, operatedBy, National Railroad Passenger Corporation]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: National Railroad Passenger Corporation Context triple: [Downeaster, operatedBy, National Railroad Passenger Corporation]
-
A.
Consolidated Rail Corporation
Consolidated Rail Corporation, commonly known as Conrail, was a major U.S. freight railroad created in the 1970s to take over and revitalize the operations of several bankrupt Northeastern railroads.
-
B.
Amtrak
chosen
Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
-
C.
Surface Transportation Corporation
Surface Transportation Corporation was a private bus company that operated many of Manhattan’s surface transit lines in New York City before they were taken over by public authorities.
-
D.
International Sleeping-Car Company
The International Sleeping-Car Company was a pioneering European rail transport firm best known for operating luxury sleeping and dining cars, including the famed Orient Express.
-
E.
Metropolitan Intercity Railway Company
Metropolitan Intercity Railway Company is a Japanese railway operator best known for running the Tsukuba Express line connecting central Tokyo with the Tsukuba area.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69e25d1d32188190948eb76909d1dcc3 |
completed | April 17, 2026, 4:17 p.m. |
| NER | Named-entity recognition | batch_69f197828c408190ae071624e40de4cc |
completed | April 29, 2026, 5:30 a.m. |
Created at: April 17, 2026, 5:06 p.m.