Triple

T9228160
Position Surface form Disambiguated ID Type / Status
Subject Cottage Grove, Oregon E221741 entity
Predicate hasCoveredBridge P50312 FINISHED
Object Chambers Covered Bridge
Chambers Covered Bridge is a historic wooden railway bridge in Cottage Grove, Oregon, notable as one of the last remaining covered railroad bridges in the United States.
 E785099 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: Chambers Covered Bridge | Statement: [Cottage Grove, Oregon, hasCoveredBridge, Chambers Covered Bridge]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chambers Covered Bridge
Context triple: [Cottage Grove, Oregon, hasCoveredBridge, Chambers Covered Bridge]
  • A. Felton Covered Bridge
    Felton Covered Bridge is a historic wooden covered bridge in Felton, California, noted as one of the tallest covered bridges in the United States and a landmark of the town’s 19th-century logging era.
  • 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. Everett Covered Bridge
    Everett Covered Bridge is a historic wooden covered bridge in Ohio, known as the last remaining covered bridge in Summit County and a popular landmark within Cuyahoga Valley National Park.
  • D. Northfield Falls Covered Bridge
    Northfield Falls Covered Bridge is a historic wooden covered bridge in Northfield Falls, Vermont, notable for its traditional 19th-century New England design and role in the region’s scenic rural landscape.
  • E. Henniker Covered Bridge
    Henniker Covered Bridge is a historic wooden covered bridge in Henniker, New Hampshire, known for spanning the Contoocook River with traditional New England charm.
  • 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: Chambers Covered Bridge
Triple: [Cottage Grove, Oregon, hasCoveredBridge, Chambers Covered Bridge]
Generated description
Chambers Covered Bridge is a historic wooden railway bridge in Cottage Grove, Oregon, notable as one of the last remaining covered railroad bridges in the United States.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Chambers Covered Bridge
Target entity description: Chambers Covered Bridge is a historic wooden railway bridge in Cottage Grove, Oregon, notable as one of the last remaining covered railroad bridges in the United States.
  • A. Felton Covered Bridge
    Felton Covered Bridge is a historic wooden covered bridge in Felton, California, noted as one of the tallest covered bridges in the United States and a landmark of the town’s 19th-century logging era.
  • 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. Everett Covered Bridge
    Everett Covered Bridge is a historic wooden covered bridge in Ohio, known as the last remaining covered bridge in Summit County and a popular landmark within Cuyahoga Valley National Park.
  • D. Northfield Falls Covered Bridge
    Northfield Falls Covered Bridge is a historic wooden covered bridge in Northfield Falls, Vermont, notable for its traditional 19th-century New England design and role in the region’s scenic rural landscape.
  • E. Henniker Covered Bridge
    Henniker Covered Bridge is a historic wooden covered bridge in Henniker, New Hampshire, known for spanning the Contoocook River with traditional New England charm.
  • 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_69ca83ec8db08190a9110df8232885d2 completed March 30, 2026, 2:08 p.m.
NER Named-entity recognition batch_69ccdaa0a7608190b10d913e5e3d1b3e completed April 1, 2026, 8:43 a.m.
NED1 Entity disambiguation (via context triple) batch_69d0665cd43481908287b6d4858d63a1 completed April 4, 2026, 1:16 a.m.
NEDg Description generation batch_69d06772c0508190883b22974ec09155 completed April 4, 2026, 1:20 a.m.
NED2 Entity disambiguation (via description) batch_69d067cab3a4819086a464f36a8adb3a completed April 4, 2026, 1:22 a.m.
Created at: March 30, 2026, 7:28 p.m.