Triple
T21690607
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amtrak Pere Marquette line |
E535352
|
entity |
| Predicate | terminus |
P388
|
FINISHED |
| Object | Grand Rapids station |
—
|
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: Grand Rapids station | Statement: [Amtrak Pere Marquette line, terminus, Grand Rapids station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Grand Rapids station Context triple: [Amtrak Pere Marquette line, terminus, Grand Rapids station]
-
A.
Grand Rapids station
chosen
Grand Rapids station is a passenger rail station in Grand Rapids, Michigan, serving as the western terminus of Amtrak’s Pere Marquette line.
-
B.
Ann Arbor station
Ann Arbor station is a key Amtrak passenger rail stop in Ann Arbor, Michigan, serving intercity trains along the busy Chicago–Detroit/Pontiac corridor.
-
C.
Dearborn Station
Dearborn Station is a historic former passenger railroad terminal in Chicago, known for its distinctive Romanesque architecture and role as a major gateway to the city in the late 19th and early 20th centuries.
-
D.
Port Huron station
Port Huron station is an Amtrak passenger rail station in Port Huron, Michigan, serving as the eastern terminus of the Blue Water route between Chicago and Port Huron.
-
E.
Madison station
Madison station is a historic New Jersey Transit commuter rail station serving the borough of Madison, New Jersey, on the Morristown Line.
- 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_69e0c46a6ee481908836e1420fb78c9b |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69ef96cfaab08190b400e1538afc8c43 |
completed | April 27, 2026, 5:03 p.m. |
Created at: April 16, 2026, 6:44 p.m.