Triple

T18068369

Position	Surface form	Disambiguated ID	Type / Status
Subject	Smithfield Street Bridge	`E432351`	entity
Predicate	alsoKnownAs	`P39`	FINISHED
Object	Smithfield Street Bridge (Monongahela River) Smithfield Street Bridge (Monongahela River) is a historic lenticular truss bridge in Pittsburgh, Pennsylvania, known as one of the oldest steel bridges in the United States and a National Historic Landmark.	`E1303795`	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: Smithfield Street Bridge (Monongahela River) | Statement: [Smithfield Street Bridge, alsoKnownAs, Smithfield Street Bridge (Monongahela River)]

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

Target entity: Smithfield Street Bridge (Monongahela River)
Context triple: [Smithfield Street Bridge, alsoKnownAs, Smithfield Street Bridge (Monongahela River)]

A. Girard Avenue Bridge over the Schuylkill River
The Girard Avenue Bridge over the Schuylkill River is a historic multi-span bridge in Philadelphia that carries Girard Avenue across the Schuylkill River, connecting the city’s Fairmount and West Philadelphia areas.
B. Panhandle Bridge at Pittsburgh
The Panhandle Bridge at Pittsburgh is a historic railroad bridge over the Monongahela River that once carried major Pennsylvania Railroad and successor passenger trains into downtown Pittsburgh.
C. Sewickley Bridge
Sewickley Bridge is a major steel truss bridge spanning the Ohio River in Pennsylvania, connecting the borough of Sewickley to communities on the opposite shore.
D. Ambridge–Aliquippa Bridge
The Ambridge–Aliquippa Bridge is a historic steel truss bridge spanning the Ohio River in western Pennsylvania, connecting the communities of Ambridge and Aliquippa.
E. Market Street Bridge (Harrisburg)
The Market Street Bridge in Harrisburg is a historic multi-span bridge that carries Market Street across the Susquehanna River, linking downtown Harrisburg with the West Shore communities.
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: Smithfield Street Bridge (Monongahela River)
Triple: [Smithfield Street Bridge, alsoKnownAs, Smithfield Street Bridge (Monongahela River)]

Generated description

Smithfield Street Bridge (Monongahela River) is a historic lenticular truss bridge in Pittsburgh, Pennsylvania, known as one of the oldest steel bridges in the United States and a National Historic Landmark.

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

Target entity: Smithfield Street Bridge (Monongahela River)
Target entity description: Smithfield Street Bridge (Monongahela River) is a historic lenticular truss bridge in Pittsburgh, Pennsylvania, known as one of the oldest steel bridges in the United States and a National Historic Landmark.

A. Girard Avenue Bridge over the Schuylkill River
The Girard Avenue Bridge over the Schuylkill River is a historic multi-span bridge in Philadelphia that carries Girard Avenue across the Schuylkill River, connecting the city’s Fairmount and West Philadelphia areas.
B. Panhandle Bridge at Pittsburgh
The Panhandle Bridge at Pittsburgh is a historic railroad bridge over the Monongahela River that once carried major Pennsylvania Railroad and successor passenger trains into downtown Pittsburgh.
C. Sewickley Bridge
Sewickley Bridge is a major steel truss bridge spanning the Ohio River in Pennsylvania, connecting the borough of Sewickley to communities on the opposite shore.
D. Ambridge–Aliquippa Bridge
The Ambridge–Aliquippa Bridge is a historic steel truss bridge spanning the Ohio River in western Pennsylvania, connecting the communities of Ambridge and Aliquippa.
E. Market Street Bridge (Harrisburg)
The Market Street Bridge in Harrisburg is a historic multi-span bridge that carries Market Street across the Susquehanna River, linking downtown Harrisburg with the West Shore communities.
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_69d8b9070cac81909fa9473fb1c3f1c7`	completed	April 10, 2026, 8:47 a.m.
NER	Named-entity recognition	`batch_69e4ccebff748190b41d2edd93994c67`	completed	April 19, 2026, 12:39 p.m.
NED1	Entity disambiguation (via context triple)	`batch_6a0356721eb4819095f84bb57147bcee`	completed	May 12, 2026, 4:33 p.m.
NEDg	Description generation	`batch_6a0357c992d08190b590dd30f982f9a9`	completed	May 12, 2026, 4:39 p.m.
NED2	Entity disambiguation (via description)	`batch_6a0358402bc48190b91c2c829aef5bc1`	completed	May 12, 2026, 4:41 p.m.

Created at: April 10, 2026, 10:26 a.m.