Triple
T100486
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Urbana, Illinois, United States |
E2028
|
entity |
| Predicate | hasPublicTransitSystem |
P105
|
FINISHED |
| Object |
Champaign–Urbana Mass Transit District
The Champaign–Urbana Mass Transit District is the primary public bus system serving the Champaign–Urbana metropolitan area and the University of Illinois campus in Illinois.
|
E15037
|
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: Champaign–Urbana Mass Transit District | Statement: [Urbana, Illinois, United States, hasPublicTransitSystem, Champaign–Urbana Mass Transit District]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Champaign–Urbana Mass Transit District Context triple: [Urbana, Illinois, United States, hasPublicTransitSystem, Champaign–Urbana Mass Transit District]
-
A.
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.
-
B.
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.
-
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.
Chicago Rapid Transit Company
The Chicago Rapid Transit Company was the private operator of Chicago’s elevated “L” rail system in the early 20th century before public transit was consolidated under the Chicago Transit Authority.
-
E.
Illinois Technology and Research Corridor
The Illinois Technology and Research Corridor is a major suburban business and innovation hub west of Chicago, known for its concentration of corporate headquarters, research facilities, and high-tech industries along Interstate 88.
- 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: Champaign–Urbana Mass Transit District Triple: [Urbana, Illinois, United States, hasPublicTransitSystem, Champaign–Urbana Mass Transit District]
Generated description
The Champaign–Urbana Mass Transit District is the primary public bus system serving the Champaign–Urbana metropolitan area and the University of Illinois campus in Illinois.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Champaign–Urbana Mass Transit District Target entity description: The Champaign–Urbana Mass Transit District is the primary public bus system serving the Champaign–Urbana metropolitan area and the University of Illinois campus in Illinois.
-
A.
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.
-
B.
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.
-
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.
Chicago Rapid Transit Company
The Chicago Rapid Transit Company was the private operator of Chicago’s elevated “L” rail system in the early 20th century before public transit was consolidated under the Chicago Transit Authority.
-
E.
Illinois Technology and Research Corridor
The Illinois Technology and Research Corridor is a major suburban business and innovation hub west of Chicago, known for its concentration of corporate headquarters, research facilities, and high-tech industries along Interstate 88.
- 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_69a24d4862f881908cc8b89d3a78031d |
completed | Feb. 28, 2026, 2:04 a.m. |
| NER | Named-entity recognition | batch_69a24ff1a8cc8190843d4c6807cebd09 |
completed | Feb. 28, 2026, 2:16 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a2aa43d2948190bc7ec06d157fab9a |
completed | Feb. 28, 2026, 8:41 a.m. |
| NEDg | Description generation | batch_69a2ab33e2c88190b53505ffb88cf522 |
completed | Feb. 28, 2026, 8:45 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a2abb79ef08190be7101791c291eb9 |
completed | Feb. 28, 2026, 8:47 a.m. |
Created at: Feb. 28, 2026, 2:09 a.m.