Triple
T6317022
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metra Union Pacific North Line |
E141640
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
Evanston Davis Street station
Evanston Davis Street station is a commuter rail station in Evanston, Illinois, serving downtown Evanston with Metra service to and from Chicago.
|
E594398
|
NE FINISHED |
How this triple was built (4 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: Evanston Davis Street station | Statement: [Metra Union Pacific North Line, hasStation, Evanston Davis Street station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Evanston Davis Street station Context triple: [Metra Union Pacific North Line, hasStation, Evanston Davis Street station]
-
A.
Chicago (Brown Line) station
Chicago (Brown Line) station is an 'L' rapid transit stop in Chicago, Illinois, serving the CTA's Brown Line trains.
-
B.
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.
-
C.
Dempster–Skokie station
Dempster–Skokie station is a Chicago Transit Authority rapid transit station in Skokie, Illinois, serving as the northern endpoint of the Yellow Line and a key park-and-ride hub for commuters.
-
D.
Blue Island–Vermont Street station
Blue Island–Vermont Street station is a Metra commuter rail station in Blue Island, Illinois, serving as a key stop on Chicago-area rail lines.
-
E.
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.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Evanston Davis Street station Triple: [Metra Union Pacific North Line, hasStation, Evanston Davis Street station]
Generated description
Evanston Davis Street station is a commuter rail station in Evanston, Illinois, serving downtown Evanston with Metra service to and from Chicago.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Evanston Davis Street station Target entity description: Evanston Davis Street station is a commuter rail station in Evanston, Illinois, serving downtown Evanston with Metra service to and from Chicago.
-
A.
Chicago (Brown Line) station
Chicago (Brown Line) station is an 'L' rapid transit stop in Chicago, Illinois, serving the CTA's Brown Line trains.
-
B.
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.
-
C.
Dempster–Skokie station
Dempster–Skokie station is a Chicago Transit Authority rapid transit station in Skokie, Illinois, serving as the northern endpoint of the Yellow Line and a key park-and-ride hub for commuters.
-
D.
Blue Island–Vermont Street station
Blue Island–Vermont Street station is a Metra commuter rail station in Blue Island, Illinois, serving as a key stop on Chicago-area rail lines.
-
E.
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.
- F. None of above. chosen
Provenance (5 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_69c008d13b8c8190be47d896eb735605 |
completed | March 22, 2026, 3:20 p.m. |
| NER | Named-entity recognition | batch_69c064c25530819080b29e0029175c00 |
completed | March 22, 2026, 9:53 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c64ba5b0bc8190aefa07c77c99be83 |
completed | March 27, 2026, 9:19 a.m. |
| NEDg | Description generation | batch_69c64f37cfa88190a1b896d1893a28d4 |
completed | March 27, 2026, 9:34 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c64fa0196c8190aa4c7241acf0c0b6 |
completed | March 27, 2026, 9:36 a.m. |
Created at: March 22, 2026, 4:29 p.m.