Triple
T16513773
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Michigan Line |
E401127
|
entity |
| Predicate | usedBy |
P260
|
FINISHED |
| Object | Amtrak Pere Marquette service |
E535352
|
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 Pere Marquette service | Statement: [Michigan Line, usedBy, Amtrak Pere Marquette service]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amtrak Pere Marquette service Context triple: [Michigan Line, usedBy, Amtrak Pere Marquette service]
-
A.
Amtrak Pere Marquette line
chosen
The Amtrak Pere Marquette line is a passenger rail route in the Midwestern United States that connects Chicago with several cities along the eastern shore of Lake Michigan.
-
B.
Amtrak Wolverine service
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.
-
C.
Amtrak Hiawatha Service
Amtrak Hiawatha Service is a frequent intercity passenger rail route operated by Amtrak between Chicago, Illinois, and Milwaukee, Wisconsin.
-
D.
Amtrak Lincoln Service
Amtrak Lincoln Service is a passenger rail service operated by Amtrak that runs between Chicago, Illinois, and St. Louis, Missouri, providing intercity transportation through central Illinois.
-
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_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_6a006ed6627081909dae6b4259a5609c |
completed | May 10, 2026, 11:41 a.m. |
Created at: April 10, 2026, 5:14 a.m.