Triple
T16513817
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Norfolk Southern trackage in Indiana and Illinois |
E401128
|
entity |
| Predicate | hostsService |
P2592
|
FINISHED |
| Object | Amtrak Wolverine |
E92063
|
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 Wolverine | Statement: [Norfolk Southern trackage in Indiana and Illinois, hostsService, Amtrak Wolverine]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amtrak Wolverine Context triple: [Norfolk Southern trackage in Indiana and Illinois, hostsService, Amtrak Wolverine]
-
A.
Amtrak Heartland Flyer
The Amtrak Heartland Flyer is a daily passenger train route that operates between Oklahoma City, Oklahoma, and Fort Worth, Texas, providing regional rail service through the Southern Plains.
-
B.
Amtrak Silver Star
Amtrak Silver Star is a long-distance passenger train operated by Amtrak that runs between New York City and Miami, serving major cities along the U.S. East Coast.
-
C.
Amtrak Wolverine service
chosen
Amtrak Wolverine service is a passenger rail line operated by Amtrak that runs between Chicago and Pontiac in Michigan, serving key cities across the state.
-
D.
Amtrak Lake Shore Limited
Amtrak Lake Shore Limited is a long-distance passenger train service that runs between Chicago and the Northeastern United States, primarily serving New York City and Boston.
-
E.
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.
- 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_69d88381f6148190819958a038be990e |
completed | April 10, 2026, 4:58 a.m. |
| NER | Named-entity recognition | batch_69e32e78d4848190a55de9902115b1b2 |
completed | April 18, 2026, 7:10 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a0067a59eb48190901ba7907c09639d |
completed | May 10, 2026, 11:10 a.m. |
Created at: April 10, 2026, 5:14 a.m.