Triple

T17151688

Position	Surface form	Disambiguated ID	Type / Status
Subject	Smithfield Street Bridge	`E416235`	entity
Predicate	hasLandmarkStatusFrom	`P126311`	FINISHED
Object	City of Pittsburgh Historic Review Commission The City of Pittsburgh Historic Review Commission is a municipal body responsible for designating and overseeing the preservation of historic landmarks and districts within Pittsburgh.	`E1252795`	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: City of Pittsburgh Historic Review Commission | Statement: [Smithfield Street Bridge, hasLandmarkStatusFrom, City of Pittsburgh Historic Review Commission]

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

Target entity: City of Pittsburgh Historic Review Commission
Context triple: [Smithfield Street Bridge, hasLandmarkStatusFrom, City of Pittsburgh Historic Review Commission]

A. Pittsburgh Parks Conservancy
Pittsburgh Parks Conservancy is a nonprofit organization dedicated to restoring, maintaining, and enhancing Pittsburgh’s public parks and green spaces.
B. Pittsburgh Point Historic District
Pittsburgh Point Historic District is a historically significant area at the confluence of Pittsburgh’s three rivers, known for its preserved 18th-century fort sites and its integration with Point State Park.
C. City of Pittsburgh Department of Public Works
The City of Pittsburgh Department of Public Works is the municipal agency responsible for maintaining the city’s infrastructure and public spaces, including streets, facilities, and parks.
D. Pittsburgh City Council
Pittsburgh City Council is the legislative body of the City of Pittsburgh, responsible for passing local laws, approving budgets, and representing the interests of the city's neighborhoods.
E. Philadelphia Historical Commission
The Philadelphia Historical Commission is the city agency responsible for identifying, protecting, and regulating Philadelphia’s historic buildings, sites, and districts.
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: City of Pittsburgh Historic Review Commission
Triple: [Smithfield Street Bridge, hasLandmarkStatusFrom, City of Pittsburgh Historic Review Commission]

Generated description

The City of Pittsburgh Historic Review Commission is a municipal body responsible for designating and overseeing the preservation of historic landmarks and districts within Pittsburgh.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: City of Pittsburgh Historic Review Commission
Target entity description: The City of Pittsburgh Historic Review Commission is a municipal body responsible for designating and overseeing the preservation of historic landmarks and districts within Pittsburgh.

A. Pittsburgh Parks Conservancy
Pittsburgh Parks Conservancy is a nonprofit organization dedicated to restoring, maintaining, and enhancing Pittsburgh’s public parks and green spaces.
B. Pittsburgh Point Historic District
Pittsburgh Point Historic District is a historically significant area at the confluence of Pittsburgh’s three rivers, known for its preserved 18th-century fort sites and its integration with Point State Park.
C. City of Pittsburgh Department of Public Works
The City of Pittsburgh Department of Public Works is the municipal agency responsible for maintaining the city’s infrastructure and public spaces, including streets, facilities, and parks.
D. Pittsburgh City Council
Pittsburgh City Council is the legislative body of the City of Pittsburgh, responsible for passing local laws, approving budgets, and representing the interests of the city's neighborhoods.
E. Philadelphia Historical Commission
The Philadelphia Historical Commission is the city agency responsible for identifying, protecting, and regulating Philadelphia’s historic buildings, sites, and districts.
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_69d886d279c081909f8ff1f743ddeb69`	completed	April 10, 2026, 5:12 a.m.
NER	Named-entity recognition	`batch_69e3f40775848190ada44742c0113ab3`	completed	April 18, 2026, 9:13 p.m.
NED1	Entity disambiguation (via context triple)	`batch_6a01415d19288190beb3c94da2ce8c0e`	completed	May 11, 2026, 2:39 a.m.
NEDg	Description generation	`batch_6a01422c0f088190b162c7086bc93585`	completed	May 11, 2026, 2:42 a.m.
NED2	Entity disambiguation (via description)	`batch_6a0142f274ec819081eb15a3ea0e1b13`	completed	May 11, 2026, 2:46 a.m.

Created at: April 10, 2026, 5:36 a.m.