Triple

T2825716
Position Surface form Disambiguated ID Type / Status
Subject Monongahela River E54914 entity
Predicate hasBridge P386 FINISHED
Object Fort Pitt Bridge
The Fort Pitt Bridge is a prominent steel double-deck arch bridge in Pittsburgh, Pennsylvania, carrying traffic from the Fort Pitt Tunnel over the Monongahela River into the city’s downtown.
E496295 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: Fort Pitt Bridge | Statement: [Monongahela River, hasBridge, Fort Pitt Bridge]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Fort Pitt Bridge
Context triple: [Monongahela River, hasBridge, Fort Pitt Bridge]
  • A. Cincinnati–Covington Bridge
    The Cincinnati–Covington Bridge is a historic 19th-century suspension bridge over the Ohio River, renowned as a pioneering precursor to the Brooklyn Bridge and a major engineering achievement of its era.
  • B. Columbia–Wrightsville Bridge
    The Columbia–Wrightsville Bridge is a historic multi-span concrete arch bridge in Pennsylvania that carries U.S. Route 462 between the towns of Columbia and Wrightsville.
  • C. Mark Twain Memorial Bridge
    The Mark Twain Memorial Bridge is a highway bridge over the Mississippi River near Hannibal, Missouri, named in honor of the famed American author Mark Twain.
  • D. Sagamore Bridge
    Sagamore Bridge is a major highway bridge in Massachusetts that carries traffic over the Cape Cod Canal, serving as one of the primary gateways to Cape Cod.
  • E. Sagadahoc Bridge
    The Sagadahoc Bridge is a highway bridge spanning the Kennebec River in Maine, carrying U.S. Route 1 between the cities of Bath and Woolwich.
  • 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: Fort Pitt Bridge
Triple: [Monongahela River, hasBridge, Fort Pitt Bridge]
Generated description
The Fort Pitt Bridge is a prominent steel double-deck arch bridge in Pittsburgh, Pennsylvania, carrying traffic from the Fort Pitt Tunnel over the Monongahela River into the city’s downtown.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Fort Pitt Bridge
Target entity description: The Fort Pitt Bridge is a prominent steel double-deck arch bridge in Pittsburgh, Pennsylvania, carrying traffic from the Fort Pitt Tunnel over the Monongahela River into the city’s downtown.
  • A. Cincinnati–Covington Bridge
    The Cincinnati–Covington Bridge is a historic 19th-century suspension bridge over the Ohio River, renowned as a pioneering precursor to the Brooklyn Bridge and a major engineering achievement of its era.
  • B. Columbia–Wrightsville Bridge
    The Columbia–Wrightsville Bridge is a historic multi-span concrete arch bridge in Pennsylvania that carries U.S. Route 462 between the towns of Columbia and Wrightsville.
  • C. Mark Twain Memorial Bridge
    The Mark Twain Memorial Bridge is a highway bridge over the Mississippi River near Hannibal, Missouri, named in honor of the famed American author Mark Twain.
  • D. Sagamore Bridge
    Sagamore Bridge is a major highway bridge in Massachusetts that carries traffic over the Cape Cod Canal, serving as one of the primary gateways to Cape Cod.
  • E. Sagadahoc Bridge
    The Sagadahoc Bridge is a highway bridge spanning the Kennebec River in Maine, carrying U.S. Route 1 between the cities of Bath and Woolwich.
  • 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_69ab49e100c0819082a40cb797383243 completed March 6, 2026, 9:40 p.m.
NER Named-entity recognition batch_69abde925e688190bb390d3182f8c4f0 completed March 7, 2026, 8:15 a.m.
NED1 Entity disambiguation (via context triple) batch_69bec330d09c819085930d71b21acb7c completed March 21, 2026, 4:11 p.m.
NEDg Description generation batch_69bec505a5dc81908f79c1ade107c4ce completed March 21, 2026, 4:19 p.m.
NED2 Entity disambiguation (via description) batch_69bec654fc4881909bf5458cdafc7ffd completed March 21, 2026, 4:24 p.m.
Created at: March 6, 2026, 9:59 p.m.