Triple

T12213518
Position Surface form Disambiguated ID Type / Status
Subject Portage Lake Lift Bridge E291025 entity
Predicate over P27212 FINISHED
Object Keweenaw Waterway shipping canal E297397 NE FINISHED

Disambiguation candidates (1 decision)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Keweenaw Waterway shipping canal
Context triple: [Portage Lake Lift Bridge, over, Keweenaw Waterway shipping canal]
  • A. Keweenaw Waterway chosen
    The Keweenaw Waterway is a navigable canal and natural waterway system in Michigan’s Upper Peninsula that cuts across the Keweenaw Peninsula, connecting Lake Superior’s north and south shores.
  • B. Duluth Ship Canal
    The Duluth Ship Canal is a man-made waterway in Duluth, Minnesota, that provides access between Lake Superior and the Duluth–Superior Harbor for large commercial and recreational vessels.
  • C. Sault Ste. Marie Canal
    The Sault Ste. Marie Canal is a historic Canadian lock and canal system in Sault Ste. Marie, Ontario, that once formed a key part of Great Lakes shipping and is now a National Historic Site.
  • D. Portage Canal
    Portage Canal is a man-made waterway in Michigan’s Keweenaw Peninsula that provides a navigable connection between Portage Lake and Lake Superior, historically important for regional shipping and mining.
  • E. Indiana Harbor and Ship Canal
    Indiana Harbor and Ship Canal is a major industrial waterway in northwest Indiana that serves as a key shipping and steel-production hub on the southern shore of Lake Michigan.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

Stage Batch ID Job type Status
creating batch_69d6ab65923081909acfc61b7a612233 elicitation completed
NER batch_69d91c931cec819083ca19be06a33e1c ner completed
NED1 batch_69f62a8c69308190bffae7b38cc5620b ned_source_triple completed
Created at: April 8, 2026, 9:51 p.m.