Triple

T5953887
Position Surface form Disambiguated ID Type / Status
Subject Lake Washington–Cedar River watershed E132463 entity
Predicate historicallyConnectedTo P16345 FINISHED
Object Black River (King County, Washington)
Black River in King County, Washington, was a former outlet of Lake Washington that largely disappeared after the lake’s level was lowered by the construction of the Lake Washington Ship Canal.
 E561978 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: Black River (King County, Washington) | Statement: [Lake Washington–Cedar River watershed, historicallyConnectedTo, Black River (King County, Washington)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Black River (King County, Washington)
Context triple: [Lake Washington–Cedar River watershed, historicallyConnectedTo, Black River (King County, Washington)]
  • A. Wahkiakum River
    The Wahkiakum River is a small coastal river in southwest Washington State that flows through forested terrain before emptying into the Columbia River.
  • B. White River (Washington)
    White River (Washington) is a glacially fed river in western Washington State that flows from the Cascade Range and serves as a significant waterway in the Puget Sound region.
  • C. Snohomish River
    The Snohomish River is a major river in western Washington State that flows through Snohomish County into Puget Sound, helping drain the Cascade Range and supporting regional ecosystems and communities.
  • D. Newaukum River
    The Newaukum River is a tributary of the Chehalis River in southwestern Washington State, known for its salmon and steelhead runs and its role in the local watershed and floodplain of Lewis County.
  • E. Cle Elum River
    The Cle Elum River is a tributary of the Yakima River in central Washington State, known for flowing through forested mountain terrain and supporting irrigation, recreation, and local ecosystems.
  • 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: Black River (King County, Washington)
Triple: [Lake Washington–Cedar River watershed, historicallyConnectedTo, Black River (King County, Washington)]
Generated description
Black River in King County, Washington, was a former outlet of Lake Washington that largely disappeared after the lake’s level was lowered by the construction of the Lake Washington Ship Canal.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Black River (King County, Washington)
Target entity description: Black River in King County, Washington, was a former outlet of Lake Washington that largely disappeared after the lake’s level was lowered by the construction of the Lake Washington Ship Canal.
  • A. Wahkiakum River
    The Wahkiakum River is a small coastal river in southwest Washington State that flows through forested terrain before emptying into the Columbia River.
  • B. White River (Washington)
    White River (Washington) is a glacially fed river in western Washington State that flows from the Cascade Range and serves as a significant waterway in the Puget Sound region.
  • C. Snohomish River
    The Snohomish River is a major river in western Washington State that flows through Snohomish County into Puget Sound, helping drain the Cascade Range and supporting regional ecosystems and communities.
  • D. Newaukum River
    The Newaukum River is a tributary of the Chehalis River in southwestern Washington State, known for its salmon and steelhead runs and its role in the local watershed and floodplain of Lewis County.
  • E. Cle Elum River
    The Cle Elum River is a tributary of the Yakima River in central Washington State, known for flowing through forested mountain terrain and supporting irrigation, recreation, and local ecosystems.
  • 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_69c0086b05cc8190a8f36a96927a525c completed March 22, 2026, 3:19 p.m.
NER Named-entity recognition batch_69c039bef5c8819093f280b235a593b0 completed March 22, 2026, 6:49 p.m.
NED1 Entity disambiguation (via context triple) batch_69c1082d00308190a8e92bb633e7f292 completed March 23, 2026, 9:30 a.m.
NEDg Description generation batch_69c10a15b9e08190be8b559e467d1d8c completed March 23, 2026, 9:38 a.m.
NED2 Entity disambiguation (via description) batch_69c10aaf299481909d0e824a126381e3 completed March 23, 2026, 9:41 a.m.
Created at: March 22, 2026, 4:02 p.m.