Triple
T21228637
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amtrak Chief Executive Officer |
E523146
|
entity |
| Predicate | alternativeName |
P39
|
FINISHED |
| Object | Amtrak CEO |
—
|
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 CEO | Statement: [Amtrak Chief Executive Officer, alternativeName, Amtrak CEO]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amtrak CEO Context triple: [Amtrak Chief Executive Officer, alternativeName, Amtrak CEO]
-
A.
Amtrak Chief Executive Officer
chosen
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.
-
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.
Director General of Railroads
The Director General of Railroads was the top federal official responsible for overseeing and operating U.S. railroads during the period of government control in World War I.
-
D.
Commissioner of Railway Safety
The Commissioner of Railway Safety is the statutory authority in India responsible for overseeing and regulating the safety of railway operations, including inspections, accident investigations, and approval of new railway works.
-
E.
Amtrak
Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
- 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.