Triple
T21228627
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amtrak Chief Executive Officer |
E523146
|
entity |
| Predicate | reportsTo |
P258
|
FINISHED |
| Object | Amtrak Board of Directors |
—
|
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: Amtrak Board of Directors | Statement: [Amtrak Chief Executive Officer, reportsTo, Amtrak Board of Directors]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amtrak Board of Directors Context triple: [Amtrak Chief Executive Officer, reportsTo, Amtrak Board of Directors]
-
A.
Board of Directors of the National Railroad Passenger Corporation
chosen
The Board of Directors of the National Railroad Passenger Corporation is the governing body responsible for overseeing the management, policies, and strategic direction of Amtrak, the United States’ national intercity passenger rail service.
-
B.
Board Chair of Amtrak
The Board Chair of Amtrak is the leading governance official responsible for overseeing the company’s board of directors and guiding strategic decisions for the United States’ national passenger rail service.
-
C.
Amtrak Chief Executive Officer
The Amtrak Chief Executive Officer is the top executive responsible for leading the United States’ national passenger rail service, overseeing its operations, strategy, and overall performance.
-
D.
Amtrak
Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
-
E.
Amtrak International (historical)
Amtrak International (historical) was a former cross-border passenger rail service jointly operated by Amtrak and VIA Rail that connected Chicago with Toronto via Michigan and Ontario.
- 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_69e0b512ad94819087942b2ed925185f |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69e734ad5068819088b203eeba4e6380 |
completed | April 21, 2026, 8:26 a.m. |
Created at: April 16, 2026, 3:44 p.m.