Triple
T4385229
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | UP Express |
E99224
|
entity |
| Predicate | connectsWith |
P37
|
FINISHED |
| Object | Amtrak (via Union Station) |
E1072
|
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 (via Union Station) | Statement: [UP Express, connectsWith, Amtrak (via Union Station)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amtrak (via Union Station) Context triple: [UP Express, connectsWith, Amtrak (via Union Station)]
-
A.
Amtrak Downeaster (at North Station)
The Amtrak Downeaster (at North Station) is an intercity passenger rail service that operates between Boston’s North Station and Brunswick, Maine, providing regional connections through New Hampshire and coastal Maine.
-
B.
Amtrak
chosen
Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
-
C.
Amtrak Valley Flyer
Amtrak Valley Flyer is a regional passenger rail service operated by Amtrak in New England, providing connections between western Massachusetts and central Connecticut as part of the broader Northeast rail network.
-
D.
Amtrak Thruway Motorcoach
Amtrak Thruway Motorcoach is a network of intercity bus services that connect communities without rail stations to Amtrak’s passenger train system across various regions in the United States.
-
E.
Amtrak Keystone Service
Amtrak Keystone Service is a passenger rail service operated by Amtrak that runs primarily between New York City and Harrisburg, Pennsylvania, providing frequent regional connections along the Keystone Corridor.
- 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_69b3454f739481909ff6c28331f0c0b9 |
completed | March 12, 2026, 10:59 p.m. |
| NER | Named-entity recognition | batch_69b35264e44c81908dd0e0a81f1353bb |
completed | March 12, 2026, 11:55 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b5e526e35c8190838c59e402da3c89 |
completed | March 14, 2026, 10:45 p.m. |
Created at: March 12, 2026, 11:19 p.m.