Triple

T21547246
Position Surface form Disambiguated ID Type / Status
Subject Duquesne E531656 entity
Predicate hasBridge P386 FINISHED
Object Duquesne Bridge (road bridge over Monongahela River vicinity)
The Duquesne Bridge is a vehicular bridge spanning the Monongahela River near Duquesne, Pennsylvania, connecting local communities in the Pittsburgh metropolitan area.
E1490471 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: Duquesne Bridge (road bridge over Monongahela River vicinity) | Statement: [Duquesne, hasBridge, Duquesne Bridge (road bridge over Monongahela River vicinity)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Duquesne Bridge (road bridge over Monongahela River vicinity)
Context triple: [Duquesne, hasBridge, Duquesne Bridge (road bridge over Monongahela River vicinity)]
  • A. 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.
  • 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. 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.
  • D. Three Sisters (Pittsburgh bridges)
    Three Sisters (Pittsburgh bridges) are a famous trio of nearly identical self-anchored suspension bridges spanning the Allegheny River in downtown Pittsburgh, known for their distinctive yellow color and historic architectural significance.
  • E. Fort Duquesne Bridge
    The Fort Duquesne Bridge is a major steel arch bridge in Pittsburgh, Pennsylvania, carrying vehicular traffic over the Allegheny River between downtown and the North Shore.
  • 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: Duquesne Bridge (road bridge over Monongahela River vicinity)
Triple: [Duquesne, hasBridge, Duquesne Bridge (road bridge over Monongahela River vicinity)]
Generated description
The Duquesne Bridge is a vehicular bridge spanning the Monongahela River near Duquesne, Pennsylvania, connecting local communities in the Pittsburgh metropolitan area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Duquesne Bridge (road bridge over Monongahela River vicinity)
Target entity description: The Duquesne Bridge is a vehicular bridge spanning the Monongahela River near Duquesne, Pennsylvania, connecting local communities in the Pittsburgh metropolitan area.
  • A. 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.
  • 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. 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.
  • D. Three Sisters (Pittsburgh bridges)
    Three Sisters (Pittsburgh bridges) are a famous trio of nearly identical self-anchored suspension bridges spanning the Allegheny River in downtown Pittsburgh, known for their distinctive yellow color and historic architectural significance.
  • E. Fort Duquesne Bridge
    The Fort Duquesne Bridge is a major steel arch bridge in Pittsburgh, Pennsylvania, carrying vehicular traffic over the Allegheny River between downtown and the North Shore.
  • 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_69e0c45f17148190949c330ab9c27706 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69eeb58fb6608190a58cd00ecf560834 completed April 27, 2026, 1:02 a.m.
NED1 Entity disambiguation (via context triple) batch_6a09eedf8e888190953f55c2e4f6b021 completed May 17, 2026, 4:37 p.m.
NEDg Description generation batch_6a09f198f9448190912060dbba608ded completed May 17, 2026, 4:49 p.m.
NED2 Entity disambiguation (via description) batch_6a09f22264108190ac07cee73b91befb completed May 17, 2026, 4:51 p.m.
Created at: April 16, 2026, 6:28 p.m.