Triple
T17608643
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pace Route 423 Linden CTA/The Glen/Harlem CTA |
E428905
|
entity |
| Predicate | terminus |
P388
|
FINISHED |
| Object |
Harlem CTA station
Harlem CTA station is a Chicago Transit Authority rapid transit stop on the city's West Side that serves as a key terminal and transfer point for buses and trains.
|
E167840
|
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: Harlem CTA station | Statement: [Pace Route 423 Linden CTA/The Glen/Harlem CTA, terminus, Harlem CTA station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Harlem CTA station Context triple: [Pace Route 423 Linden CTA/The Glen/Harlem CTA, terminus, Harlem CTA station]
-
A.
Harlem (Forest Park branch) station
Harlem (Forest Park branch) station is a Chicago Transit Authority rapid transit stop on the city's West Side serving the Blue Line’s Forest Park branch.
-
B.
Harlem/Lake station
Harlem/Lake station is the western terminal of the Chicago Transit Authority’s Green Line, located in the suburb of Oak Park, Illinois.
-
C.
DeKalb Avenue subway station
DeKalb Avenue subway station is a major New York City Subway hub in Downtown Brooklyn, serving multiple lines and acting as a key transfer point between Brooklyn and Manhattan.
-
D.
Fairview Avenue Station
Fairview Avenue Station is a light rail stop on the METRO Green Line serving the Saint Paul–Minneapolis area in Minnesota.
-
E.
Harlem (O'Hare branch) station
Harlem (O'Hare branch) station is a Chicago Transit Authority rapid transit stop on the Blue Line serving the city's Northwest Side near the Kennedy Expressway.
- 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: Harlem CTA station Triple: [Pace Route 423 Linden CTA/The Glen/Harlem CTA, terminus, Harlem CTA station]
Generated description
Harlem CTA station is a Chicago Transit Authority rapid transit stop on the city's West Side that serves as a key terminal and transfer point for buses and trains.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Harlem CTA station Target entity description: Harlem CTA station is a Chicago Transit Authority rapid transit stop on the city's West Side that serves as a key terminal and transfer point for buses and trains.
-
A.
Harlem (Forest Park branch) station
chosen
Harlem (Forest Park branch) station is a Chicago Transit Authority rapid transit stop on the city's West Side serving the Blue Line’s Forest Park branch.
-
B.
Harlem/Lake station
Harlem/Lake station is the western terminal of the Chicago Transit Authority’s Green Line, located in the suburb of Oak Park, Illinois.
-
C.
DeKalb Avenue subway station
DeKalb Avenue subway station is a major New York City Subway hub in Downtown Brooklyn, serving multiple lines and acting as a key transfer point between Brooklyn and Manhattan.
-
D.
Fairview Avenue Station
Fairview Avenue Station is a light rail stop on the METRO Green Line serving the Saint Paul–Minneapolis area in Minnesota.
-
E.
Harlem (O'Hare branch) station
Harlem (O'Hare branch) station is a Chicago Transit Authority rapid transit stop on the Blue Line serving the city's Northwest Side near the Kennedy Expressway.
- F. None of above.
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_69d889e1c6148190ba76241e74688f8b |
completed | April 10, 2026, 5:25 a.m. |
| NER | Named-entity recognition | batch_69e46c4d8374819097cb112fba405e77 |
completed | April 19, 2026, 5:46 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a01e821dcd8819081ded43278f37fb2 |
completed | May 11, 2026, 2:30 p.m. |
| NEDg | Description generation | batch_6a01ee1a291c81909fa432ccc787028f |
completed | May 11, 2026, 2:56 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a01eec7e00c81908d88be9f88e924c8 |
completed | May 11, 2026, 2:59 p.m. |
Created at: April 10, 2026, 5:51 a.m.