Triple
T2254878
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Northwestern Elevated Railroad |
E49697
|
entity |
| Predicate | servedStation |
P726
|
FINISHED |
| Object |
Sedgwick station (Chicago "L")
Sedgwick station is a historic Chicago "L" rapid transit stop on the city's North Side that has operated since the early 20th century.
|
E263283
|
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: Sedgwick station (Chicago "L") | Statement: [Northwestern Elevated Railroad, servedStation, Sedgwick station (Chicago "L")]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Sedgwick station (Chicago "L") Context triple: [Northwestern Elevated Railroad, servedStation, Sedgwick station (Chicago "L")]
-
A.
Chicago/Franklin station (Chicago "L")
Chicago/Franklin station was a former elevated rapid transit stop on Chicago’s "L" system that operated on the North Side main line near the city’s River North area.
-
B.
Clark/Lake station (CTA)
Clark/Lake station (CTA) is a major elevated and subway transfer station in downtown Chicago’s Loop, serving multiple Chicago 'L' lines and providing convenient access to nearby civic and commercial destinations.
-
C.
Wilson station (Chicago "L")
Wilson station is a Chicago "L" rapid transit stop in the Uptown neighborhood, serving the Red Line and acting as a key transfer and bus connection point on the city’s North Side.
-
D.
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.
-
E.
Illinois Medical District station
Illinois Medical District station is a Chicago Transit Authority rapid transit stop on the Blue Line serving the Illinois Medical District and nearby West Side institutions.
- 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: Sedgwick station (Chicago "L") Triple: [Northwestern Elevated Railroad, servedStation, Sedgwick station (Chicago "L")]
Generated description
Sedgwick station is a historic Chicago "L" rapid transit stop on the city's North Side that has operated since the early 20th century.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Sedgwick station (Chicago "L") Target entity description: Sedgwick station is a historic Chicago "L" rapid transit stop on the city's North Side that has operated since the early 20th century.
-
A.
Chicago/Franklin station (Chicago "L")
Chicago/Franklin station was a former elevated rapid transit stop on Chicago’s "L" system that operated on the North Side main line near the city’s River North area.
-
B.
Clark/Lake station (CTA)
Clark/Lake station (CTA) is a major elevated and subway transfer station in downtown Chicago’s Loop, serving multiple Chicago 'L' lines and providing convenient access to nearby civic and commercial destinations.
-
C.
Wilson station (Chicago "L")
Wilson station is a Chicago "L" rapid transit stop in the Uptown neighborhood, serving the Red Line and acting as a key transfer and bus connection point on the city’s North Side.
-
D.
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.
-
E.
Illinois Medical District station
Illinois Medical District station is a Chicago Transit Authority rapid transit stop on the Blue Line serving the Illinois Medical District and nearby West Side institutions.
- 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_69a88aaa9250819095e127d0d77e8a32 |
completed | March 4, 2026, 7:40 p.m. |
| NER | Named-entity recognition | batch_69abc121af78819085b2e601d2f9bcdf |
completed | March 7, 2026, 6:09 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69aeb3b7380c8190b1a70f7032c442a5 |
completed | March 9, 2026, 11:49 a.m. |
| NEDg | Description generation | batch_69aeb3fdccbc8190a3abe90ba1206bc6 |
completed | March 9, 2026, 11:50 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69aeb48f5d74819083dd1dfafc5a958a |
completed | March 9, 2026, 11:52 a.m. |
Created at: March 4, 2026, 7:47 p.m.