Triple
T17450420
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | City of Lancaster |
E424897
|
entity |
| Predicate | hasTransportationInfrastructure |
P385
|
FINISHED |
| Object | Lancaster Amtrak 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: Lancaster Amtrak station | Statement: [City of Lancaster, hasTransportationInfrastructure, Lancaster Amtrak station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Lancaster Amtrak station Context triple: [City of Lancaster, hasTransportationInfrastructure, Lancaster Amtrak station]
-
A.
Lancaster Station
chosen
Lancaster Station is an Amtrak passenger rail station in Lancaster, Pennsylvania, serving intercity and regional trains along the Keystone Corridor.
-
B.
Lancaster station
Lancaster station is a commuter rail station in Lancaster, California, serving as the northern terminus of Metrolink’s Antelope Valley Line.
-
C.
Mattoon Amtrak station
Mattoon Amtrak station is a passenger rail station in Mattoon, Illinois, serving Amtrak trains on routes such as the City of New Orleans and Illini/Saluki.
-
D.
Jackson Amtrak station
Jackson Amtrak station is a historic passenger rail station in Jackson, Michigan, serving Amtrak trains on the Wolverine line between Chicago and Detroit/Pontiac.
-
E.
Waterloo Amtrak station
Waterloo Amtrak station is a passenger rail station in Waterloo, Indiana, served by Amtrak trains on the Chicago–East Coast route.
- 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_69d889db0ba481908402409af3b37917 |
completed | April 10, 2026, 5:25 a.m. |
| NER | Named-entity recognition | batch_69e4513d00f48190802a3bdc8c8f4db5 |
completed | April 19, 2026, 3:51 a.m. |
Created at: April 10, 2026, 5:47 a.m.