Triple
T851215
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pink Line |
E18388
|
entity |
| Predicate | usesInfrastructureOf |
P6820
|
FINISHED |
| Object |
Cermak Branch
Cermak Branch is a segment of the Chicago Transit Authority’s rapid transit system that forms part of the Pink Line route.
|
E102526
|
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: Cermak Branch | Statement: [Pink Line, usesInfrastructureOf, Cermak Branch]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Cermak Branch Context triple: [Pink Line, usesInfrastructureOf, Cermak Branch]
-
A.
Richard J. Daley Center
The Richard J. Daley Center is a prominent civic skyscraper and courthouse in downtown Chicago, known for housing major Cook County courtrooms and government offices as well as its iconic Picasso sculpture in the adjoining plaza.
-
B.
Hegewisch, Chicago
Hegewisch, Chicago is a far Southeast Side neighborhood known for its industrial roots, rail yards, and proximity to the Calumet River and Indiana border.
-
C.
Oak Park, Illinois
Oak Park, Illinois is a historic suburb just west of Chicago known for its Frank Lloyd Wright architecture, vibrant arts scene, and diverse, walkable neighborhoods.
-
D.
LaSalle Street Station
LaSalle Street Station is a major commuter rail terminal in Chicago’s Loop that primarily serves Metra’s Rock Island District line.
-
E.
Palos Park, Illinois
Palos Park, Illinois is a small, affluent suburban village southwest of Chicago known for its forest preserves, scenic natural areas, and residential character.
- 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: Cermak Branch Triple: [Pink Line, usesInfrastructureOf, Cermak Branch]
Generated description
Cermak Branch is a segment of the Chicago Transit Authority’s rapid transit system that forms part of the Pink Line route.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Cermak Branch Target entity description: Cermak Branch is a segment of the Chicago Transit Authority’s rapid transit system that forms part of the Pink Line route.
-
A.
Richard J. Daley Center
The Richard J. Daley Center is a prominent civic skyscraper and courthouse in downtown Chicago, known for housing major Cook County courtrooms and government offices as well as its iconic Picasso sculpture in the adjoining plaza.
-
B.
Hegewisch, Chicago
Hegewisch, Chicago is a far Southeast Side neighborhood known for its industrial roots, rail yards, and proximity to the Calumet River and Indiana border.
-
C.
Oak Park, Illinois
Oak Park, Illinois is a historic suburb just west of Chicago known for its Frank Lloyd Wright architecture, vibrant arts scene, and diverse, walkable neighborhoods.
-
D.
LaSalle Street Station
LaSalle Street Station is a major commuter rail terminal in Chicago’s Loop that primarily serves Metra’s Rock Island District line.
-
E.
Palos Park, Illinois
Palos Park, Illinois is a small, affluent suburban village southwest of Chicago known for its forest preserves, scenic natural areas, and residential character.
- 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_69a4938b04208190b82e1df6b572c548 |
completed | March 1, 2026, 7:29 p.m. |
| NER | Named-entity recognition | batch_69a4ac22de288190913714d41e5a8e12 |
completed | March 1, 2026, 9:14 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a7a3bd8b588190b7a9eb72dce93d07 |
completed | March 4, 2026, 3:15 a.m. |
| NEDg | Description generation | batch_69a7a8da0c3481909f34d435ccf62ea7 |
completed | March 4, 2026, 3:36 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a7a97688fc8190818957701913738f |
completed | March 4, 2026, 3:39 a.m. |
Created at: March 1, 2026, 7:38 p.m.