Triple
T6472398
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metra SouthWest Service |
E145985
|
entity |
| Predicate | usesStation |
P726
|
FINISHED |
| Object | Oak Lawn station |
E597733
|
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: Oak Lawn station | Statement: [Metra SouthWest Service, usesStation, Oak Lawn station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Oak Lawn station Context triple: [Metra SouthWest Service, usesStation, Oak Lawn station]
-
A.
Oak Forest station
Oak Forest station is a commuter rail stop in Oak Forest, Illinois, serving Metra's Rock Island District line between Chicago and its southwestern suburbs.
-
B.
River Grove station
River Grove station is a commuter rail stop in River Grove, Illinois, served by Metra’s North Central Service line in the Chicago metropolitan area.
-
C.
Chicago Ridge station
chosen
Chicago Ridge station is a commuter rail stop in Chicago Ridge, Illinois, serving passengers on Metra’s SouthWest Service line between Chicago and its southwestern suburbs.
-
D.
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.
-
E.
Berwyn station
Berwyn station is a commuter rail stop in Berwyn, Illinois, served by Metra trains on the BNSF Railway Line connecting the suburb to downtown Chicago.
- 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_69c008fec7408190af7b146dc63d9750 |
completed | March 22, 2026, 3:21 p.m. |
| NER | Named-entity recognition | batch_69c06a3188488190a1b7452ede91ba5e |
completed | March 22, 2026, 10:16 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c66382f9ac81908d9cb444ab596d04 |
completed | March 27, 2026, 11:01 a.m. |
Created at: March 22, 2026, 4:50 p.m.