Triple

T779144

Position	Surface form	Disambiguated ID	Type / Status
Subject	BP Pedestrian Bridge	`E16456`	entity
Predicate	maintainedBy	`P86`	FINISHED
Object	Chicago Department of Transportation The Chicago Department of Transportation is the city agency responsible for planning, building, and maintaining Chicago’s transportation infrastructure, including streets, bridges, and pedestrian facilities.	`E91997`	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: [BP Pedestrian Bridge, maintainedBy, Chicago Department of Transportation]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Chicago Department of Transportation
Context triple: [BP Pedestrian Bridge, maintainedBy, Chicago Department of Transportation]

A. Chicago Department of Streets and Sanitation
The Chicago Department of Streets and Sanitation is the city agency responsible for services such as garbage collection, street cleaning, snow removal, and rodent control in Chicago.
B. Chicago Department of Planning and Development
The Chicago Department of Planning and Development is the city agency responsible for guiding land use, zoning, urban design, and economic development initiatives across Chicago.
C. Chicago Department of Buildings
The Chicago Department of Buildings is the city agency responsible for enforcing building codes, overseeing construction safety, and regulating building permits and inspections in Chicago.
D. 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.
E. Chicago Department of Housing
The Chicago Department of Housing is the city agency responsible for planning, financing, and overseeing affordable housing and related community development initiatives 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: [BP Pedestrian Bridge, maintainedBy, Chicago Department of Transportation]

Generated description

The Chicago Department of Transportation is the city agency responsible for planning, building, and maintaining Chicago’s transportation infrastructure, including streets, bridges, and pedestrian facilities.

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, and maintaining Chicago’s transportation infrastructure, including streets, bridges, and pedestrian facilities.

A. Chicago Department of Streets and Sanitation
The Chicago Department of Streets and Sanitation is the city agency responsible for services such as garbage collection, street cleaning, snow removal, and rodent control in Chicago.
B. Chicago Department of Planning and Development
The Chicago Department of Planning and Development is the city agency responsible for guiding land use, zoning, urban design, and economic development initiatives across Chicago.
C. Chicago Department of Buildings
The Chicago Department of Buildings is the city agency responsible for enforcing building codes, overseeing construction safety, and regulating building permits and inspections in Chicago.
D. 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.
E. Chicago Department of Housing
The Chicago Department of Housing is the city agency responsible for planning, financing, and overseeing affordable housing and related community development initiatives in Chicago.
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_69a4936ad1fc81908f190208059ccf78`	completed	March 1, 2026, 7:28 p.m.
NER	Named-entity recognition	`batch_69a4a74f886081909c27b786e3adbe32`	completed	March 1, 2026, 8:53 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69a66d9dd9b48190ba7fae75db01c114`	completed	March 3, 2026, 5:11 a.m.
NEDg	Description generation	`batch_69a66f03f1e88190a2a7cdbe57f57bc2`	completed	March 3, 2026, 5:17 a.m.
NED2	Entity disambiguation (via description)	`batch_69a66fa5123c819085ee7cef0c7013c9`	completed	March 3, 2026, 5:20 a.m.

Created at: March 1, 2026, 7:37 p.m.