Triple
T413724
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Government of Chicago |
E9545
|
entity |
| Predicate | hasDepartment |
P35
|
FINISHED |
| Object |
Chicago Department of Transportation
The Chicago Department of Transportation is the city agency responsible for planning, building, managing, and maintaining Chicago’s transportation infrastructure and systems.
|
E9545
|
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: Chicago Department of Transportation | Statement: [Government of Chicago, hasDepartment, Chicago Department of Transportation]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chicago Department of Transportation Context triple: [Government of Chicago, hasDepartment, Chicago Department of Transportation]
-
A.
Chicago Transit Authority
The Chicago Transit Authority is the primary public transportation agency serving Chicago and several surrounding suburbs, operating the city’s extensive network of buses and rapid transit trains.
-
B.
Government of Chicago
The Government of Chicago is the municipal administration responsible for governing the city of Chicago, headed by the mayor and supported by various executive departments and agencies.
-
C.
Chicago Surface Lines
Chicago Surface Lines was a privately operated streetcar and bus system that provided most of Chicago’s surface public transportation in the first half of the 20th century.
-
D.
Regional Transportation Authority of Northeastern Illinois
The Regional Transportation Authority of Northeastern Illinois is the oversight and funding agency that coordinates public transit services, including those of the Chicago Transit Authority, across the Chicago metropolitan area.
-
E.
Chicago City Council
The Chicago City Council is the municipal legislative body responsible for passing laws, approving budgets, and overseeing city governance in Chicago.
- 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: Chicago Department of Transportation Triple: [Government of Chicago, hasDepartment, Chicago Department of Transportation]
Generated description
The Chicago Department of Transportation is the city agency responsible for planning, building, managing, and maintaining Chicago’s transportation infrastructure and systems.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Chicago Department of Transportation Target entity description: The Chicago Department of Transportation is the city agency responsible for planning, building, managing, and maintaining Chicago’s transportation infrastructure and systems.
-
A.
Chicago Transit Authority
The Chicago Transit Authority is the primary public transportation agency serving Chicago and several surrounding suburbs, operating the city’s extensive network of buses and rapid transit trains.
-
B.
Government of Chicago
chosen
The Government of Chicago is the municipal administration responsible for governing the city of Chicago, headed by the mayor and supported by various executive departments and agencies.
-
C.
Chicago Surface Lines
Chicago Surface Lines was a privately operated streetcar and bus system that provided most of Chicago’s surface public transportation in the first half of the 20th century.
-
D.
Regional Transportation Authority of Northeastern Illinois
The Regional Transportation Authority of Northeastern Illinois is the oversight and funding agency that coordinates public transit services, including those of the Chicago Transit Authority, across the Chicago metropolitan area.
-
E.
Chicago City Council
The Chicago City Council is the municipal legislative body responsible for passing laws, approving budgets, and overseeing city governance in Chicago.
- 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_69a2e80111fc8190961d5b7c6154123f |
completed | Feb. 28, 2026, 1:05 p.m. |
| NER | Named-entity recognition | batch_69a2ecdd3d1c8190a31b071569cfc980 |
completed | Feb. 28, 2026, 1:25 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a41b4ce1648190b1f46ba33d7cf946 |
completed | March 1, 2026, 10:56 a.m. |
| NEDg | Description generation | batch_69a41bc18b388190ae97d97656294e7b |
completed | March 1, 2026, 10:58 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a422983e708190904cd891d3996338 |
completed | March 1, 2026, 11:27 a.m. |
Created at: Feb. 28, 2026, 1:09 p.m.