Triple

T12845399
Position Surface form Disambiguated ID Type / Status
Subject Madison County, Iowa E307161 entity
Predicate hasLandmark P105 FINISHED
Object Cutler–Donahoe Covered Bridge
The Cutler–Donahoe Covered Bridge is a historic wooden covered bridge in Madison County, Iowa, celebrated as one of the county’s iconic 19th-century bridges and a popular heritage and tourist attraction.
E1014290 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: Cutler–Donahoe Covered Bridge | Statement: [Madison County, Iowa, hasLandmark, Cutler–Donahoe Covered Bridge]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Cutler–Donahoe Covered Bridge
Context triple: [Madison County, Iowa, hasLandmark, Cutler–Donahoe Covered Bridge]
  • A. Currin Covered Bridge
    Currin Covered Bridge is a historic wooden covered bridge near Cottage Grove, Oregon, noted for its distinctive red-and-white paint and classic Howe truss design.
  • B. Newfield Covered Bridge
    Newfield Covered Bridge is a historic 19th-century wooden covered bridge in Newfield, New York, noted as one of the oldest surviving covered bridges in the state.
  • C. Cedar Covered Bridge
    Cedar Covered Bridge is a historic wooden covered bridge in Madison County, Iowa, famed as one of the iconic “Bridges of Madison County” featured in literature and film.
  • D. Imes Covered Bridge
    Imes Covered Bridge is a historic wooden covered bridge in Madison County, Iowa, known as one of the county’s iconic 19th-century bridges featured in “The Bridges of Madison County.”
  • E. Eldean Covered Bridge
    Eldean Covered Bridge is a historic 19th-century covered wooden bridge in Troy, Ohio, noted for its long span and preservation as a significant example of American covered bridge engineering.
  • 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: Cutler–Donahoe Covered Bridge
Triple: [Madison County, Iowa, hasLandmark, Cutler–Donahoe Covered Bridge]
Generated description
The Cutler–Donahoe Covered Bridge is a historic wooden covered bridge in Madison County, Iowa, celebrated as one of the county’s iconic 19th-century bridges and a popular heritage and tourist attraction.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Cutler–Donahoe Covered Bridge
Target entity description: The Cutler–Donahoe Covered Bridge is a historic wooden covered bridge in Madison County, Iowa, celebrated as one of the county’s iconic 19th-century bridges and a popular heritage and tourist attraction.
  • A. Currin Covered Bridge
    Currin Covered Bridge is a historic wooden covered bridge near Cottage Grove, Oregon, noted for its distinctive red-and-white paint and classic Howe truss design.
  • B. Newfield Covered Bridge
    Newfield Covered Bridge is a historic 19th-century wooden covered bridge in Newfield, New York, noted as one of the oldest surviving covered bridges in the state.
  • C. Cedar Covered Bridge
    Cedar Covered Bridge is a historic wooden covered bridge in Madison County, Iowa, famed as one of the iconic “Bridges of Madison County” featured in literature and film.
  • D. Imes Covered Bridge
    Imes Covered Bridge is a historic wooden covered bridge in Madison County, Iowa, known as one of the county’s iconic 19th-century bridges featured in “The Bridges of Madison County.”
  • E. Eldean Covered Bridge
    Eldean Covered Bridge is a historic 19th-century covered wooden bridge in Troy, Ohio, noted for its long span and preservation as a significant example of American covered bridge engineering.
  • 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_69d7bdf5e7cc8190be357278bc5ba3bb completed April 9, 2026, 2:55 p.m.
NER Named-entity recognition batch_69d96ff3a7208190b93f6292ed5efc07 completed April 10, 2026, 9:47 p.m.
NED1 Entity disambiguation (via context triple) batch_69f6b8c962f08190af7dee663a1d2319 completed May 3, 2026, 2:54 a.m.
NEDg Description generation batch_69f6b9a1ca54819085da2ca592bf5219 completed May 3, 2026, 2:57 a.m.
NED2 Entity disambiguation (via description) batch_69f6bb304f7c8190a02aa2c5f71cea89 completed May 3, 2026, 3:04 a.m.
Created at: April 9, 2026, 5:36 p.m.