Triple
T17465268
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metra North Central Service |
E425259
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object | Buffalo Grove 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: Buffalo Grove station | Statement: [Metra North Central Service, hasStation, Buffalo Grove station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Buffalo Grove station Context triple: [Metra North Central Service, hasStation, Buffalo Grove station]
-
A.
Buffalo Grove station
chosen
Buffalo Grove station is a commuter rail stop in Buffalo Grove, Illinois, served by Metra’s North Central Service line connecting the northwest suburbs to downtown Chicago.
-
B.
Glenview station
Glenview station is a commuter rail station in Glenview, Illinois, serving as a stop for Metra and Amtrak trains in the Chicago metropolitan area.
-
C.
Elmhurst station
Elmhurst station is a commuter rail stop in Elmhurst, Illinois, on Metra's Union Pacific West Line serving passengers traveling between the western suburbs and downtown Chicago.
-
D.
Palos Heights station
Palos Heights station is a commuter rail stop in Palos Heights, Illinois, serving passengers on Metra’s SouthWest Service line between Chicago and its southwestern suburbs.
-
E.
Elmwood Park station
Elmwood Park station is a commuter rail stop in Elmwood Park, Illinois, serving passengers on Metra’s Milwaukee District/West Line in the Chicago metropolitan area.
- 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_69d889dbc2e88190b18ea6115e819258 |
completed | April 10, 2026, 5:25 a.m. |
| NER | Named-entity recognition | batch_69e451a6c2e08190bca9de56ee2f5136 |
completed | April 19, 2026, 3:53 a.m. |
Created at: April 10, 2026, 5:47 a.m.