Triple
T5991379
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Alexandria Union Station |
E133357
|
entity |
| Predicate | servedByService |
P1294
|
FINISHED |
| Object | Amtrak Auto Train (via nearby Lorton terminal connection) |
E156009
|
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 Auto Train (via nearby Lorton terminal connection) | Statement: [Alexandria Union Station, servedByService, Amtrak Auto Train (via nearby Lorton terminal connection)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amtrak Auto Train (via nearby Lorton terminal connection) Context triple: [Alexandria Union Station, servedByService, Amtrak Auto Train (via nearby Lorton terminal connection)]
-
A.
Amtrak service via nearby Sturtevant station
Amtrak service via nearby Sturtevant station is a passenger rail connection that links the Racine area to regional and intercity train routes.
-
B.
Amtrak Auto Train
chosen
Amtrak Auto Train is a long-distance passenger rail service that carries both travelers and their personal vehicles nonstop between the Washington, D.C. area and central Florida.
-
C.
Amtrak services at Los Angeles Union Station
Amtrak services at Los Angeles Union Station comprise a major hub of intercity passenger rail routes linking Los Angeles with regional and long-distance destinations across California and the United States.
-
D.
Amtrak (station facility)
Amtrak (station facility) is the United States’ national passenger rail service operator that manages and maintains train stations and related passenger facilities across its network.
-
E.
Amtrak long-distance routes
Amtrak long-distance routes are the United States’ cross-country and overnight passenger train services that connect major cities and regions over extended distances.
- 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_69c0087010d081908bb8142342d63330 |
completed | March 22, 2026, 3:19 p.m. |
| NER | Named-entity recognition | batch_69c04e8fd030819095a4f3b3d425ec21 |
completed | March 22, 2026, 8:18 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c10861c0bc8190b6290d7363f4264a |
completed | March 23, 2026, 9:31 a.m. |
Created at: March 22, 2026, 4:05 p.m.