Triple

T5172274
Position Surface form Disambiguated ID Type / Status
Subject Mattawa, Washington E116711 entity
Predicate near P350 FINISHED
Object Hanford Reach area of the Columbia River
The Hanford Reach area of the Columbia River is a free-flowing, largely undammed stretch of the river in central Washington known for its intact shrub-steppe ecosystem, salmon habitat, and historical association with the Hanford nuclear site.
E499354 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: Hanford Reach area of the Columbia River | Statement: [Mattawa, Washington, near, Hanford Reach area of the Columbia River]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Hanford Reach area of the Columbia River
Context triple: [Mattawa, Washington, near, Hanford Reach area of the Columbia River]
  • A. Mokelumne River area
    The Mokelumne River area is a region of central California traditionally inhabited and culturally shaped by the Plains Miwok people.
  • B. Lower Columbia River region
    The Lower Columbia River region is a culturally and ecologically rich area of the Pacific Northwest centered along the lower stretches of the Columbia River, historically home to numerous Indigenous peoples and vital salmon fisheries.
  • C. Columbia River Basin
    The Columbia River Basin is a vast watershed in the Pacific Northwest that drains portions of seven U.S. states and British Columbia into the Columbia River, supporting major ecosystems, agriculture, and hydroelectric power.
  • D. Columbia River estuary
    The Columbia River estuary is the broad, tidally influenced transition zone where the Columbia River meets the Pacific Ocean, supporting rich ecosystems, major shipping routes, and coastal communities in the Pacific Northwest.
  • E. Grand Coulee, Washington
    Grand Coulee, Washington is a small city in north-central Washington state best known as the community adjacent to and serving the massive Grand Coulee Dam on the Columbia River.
  • 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: Hanford Reach area of the Columbia River
Triple: [Mattawa, Washington, near, Hanford Reach area of the Columbia River]
Generated description
The Hanford Reach area of the Columbia River is a free-flowing, largely undammed stretch of the river in central Washington known for its intact shrub-steppe ecosystem, salmon habitat, and historical association with the Hanford nuclear site.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Hanford Reach area of the Columbia River
Target entity description: The Hanford Reach area of the Columbia River is a free-flowing, largely undammed stretch of the river in central Washington known for its intact shrub-steppe ecosystem, salmon habitat, and historical association with the Hanford nuclear site.
  • A. Mokelumne River area
    The Mokelumne River area is a region of central California traditionally inhabited and culturally shaped by the Plains Miwok people.
  • B. Lower Columbia River region
    The Lower Columbia River region is a culturally and ecologically rich area of the Pacific Northwest centered along the lower stretches of the Columbia River, historically home to numerous Indigenous peoples and vital salmon fisheries.
  • C. Columbia River Basin
    The Columbia River Basin is a vast watershed in the Pacific Northwest that drains portions of seven U.S. states and British Columbia into the Columbia River, supporting major ecosystems, agriculture, and hydroelectric power.
  • D. Columbia River estuary
    The Columbia River estuary is the broad, tidally influenced transition zone where the Columbia River meets the Pacific Ocean, supporting rich ecosystems, major shipping routes, and coastal communities in the Pacific Northwest.
  • E. Grand Coulee, Washington
    Grand Coulee, Washington is a small city in north-central Washington state best known as the community adjacent to and serving the massive Grand Coulee Dam on the Columbia River.
  • 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_69bd445ff97c81909a2615cc56235470 completed March 20, 2026, 12:58 p.m.
NER Named-entity recognition batch_69bd795252a481908634779f3f656574 completed March 20, 2026, 4:44 p.m.
NED1 Entity disambiguation (via context triple) batch_69bed9471b4881909c8436853818a8a0 completed March 21, 2026, 5:45 p.m.
NEDg Description generation batch_69bed9f3624c8190b9d22fa0594dd767 completed March 21, 2026, 5:48 p.m.
NED2 Entity disambiguation (via description) batch_69beda5d39b88190a7314f673de2719d completed March 21, 2026, 5:50 p.m.
Created at: March 20, 2026, 1:45 p.m.