Triple

T19213816
Position Surface form Disambiguated ID Type / Status
Subject Presumpscot River E480424 entity
Predicate hasDam P8736 FINISHED
Object Smelt Hill Dam (removed) — NE NERFINISHED

How this triple was built (3 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: Smelt Hill Dam (removed) | Statement: [Presumpscot River, hasDam, Smelt Hill Dam (removed)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Smelt Hill Dam (removed)
Context triple: [Presumpscot River, hasDam, Smelt Hill Dam (removed)]
  • A. Edwards Dam (removed)
    Edwards Dam was a former hydroelectric dam on Maine’s Kennebec River that became nationally notable when it was removed in 1999 to restore the river’s ecosystem and fish migration.
  • B. Great Dam (removed)
    Great Dam (removed) was a former dam on New Hampshire’s Exeter River that was dismantled as part of a river restoration and fish-passage improvement effort.
  • C. Melton Hill Dam
    Melton Hill Dam is a Tennessee Valley Authority hydroelectric dam on the Clinch River in East Tennessee, forming Melton Hill Lake and providing power generation, recreation, and flood control for the Knoxville area.
  • D. Yale Dam
    Yale Dam is a hydroelectric dam on Washington State’s Lewis River that forms Yale Lake and helps generate power and manage water resources in the region.
  • E. Rye Patch Dam
    Rye Patch Dam is a water-control structure on the Humboldt River in Nevada that creates the reservoir around which Rye Patch State Recreation Area is centered.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Smelt Hill Dam (removed)
Target entity description: Smelt Hill Dam (removed) was a former dam on Maine’s Presumpscot River that was taken down to restore natural river flow and fish passage.
  • A. Edwards Dam (removed)
    Edwards Dam was a former hydroelectric dam on Maine’s Kennebec River that became nationally notable when it was removed in 1999 to restore the river’s ecosystem and fish migration.
  • B. Great Dam (removed)
    Great Dam (removed) was a former dam on New Hampshire’s Exeter River that was dismantled as part of a river restoration and fish-passage improvement effort.
  • C. Melton Hill Dam
    Melton Hill Dam is a Tennessee Valley Authority hydroelectric dam on the Clinch River in East Tennessee, forming Melton Hill Lake and providing power generation, recreation, and flood control for the Knoxville area.
  • D. Yale Dam
    Yale Dam is a hydroelectric dam on Washington State’s Lewis River that forms Yale Lake and helps generate power and manage water resources in the region.
  • E. Rye Patch Dam
    Rye Patch Dam is a water-control structure on the Humboldt River in Nevada that creates the reservoir around which Rye Patch State Recreation Area is centered.
  • F. None of above. chosen

Provenance (2 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_69d8e8cb8c348190b52075823911c869 completed April 10, 2026, 12:10 p.m.
NER Named-entity recognition batch_69e5fa38c0e881908e9501ee21d0f266 completed April 20, 2026, 10:04 a.m.
Created at: April 10, 2026, 1:22 p.m.