Triple

T1258924
Position Surface form Disambiguated ID Type / Status
Subject Bureau of Reclamation E12453 entity
Predicate hasReservoirs P13043 FINISHED
Object Lake Roosevelt
Lake Roosevelt is a large reservoir on the Columbia River in Washington State, created by the Grand Coulee Dam and used for hydroelectric power, irrigation, recreation, and water storage.
E159274 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: Lake Roosevelt | Statement: [Bureau of Reclamation, hasReservoirs, Lake Roosevelt]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Lake Roosevelt
Context triple: [Bureau of Reclamation, hasReservoirs, Lake Roosevelt]
  • A. Lake Powell
    Lake Powell is a large, man-made reservoir on the Colorado River known for its striking red-rock canyon scenery and recreational boating in the American Southwest.
  • B. Lake Havasu
    Lake Havasu is a large reservoir on the Colorado River along the Arizona–California border, popular for boating, fishing, and the relocated London Bridge tourist attraction.
  • C. Lake Mead
    Lake Mead is a large man-made reservoir on the Colorado River in the southwestern United States, known for supplying water and hydroelectric power to millions of people in the region.
  • D. Lake Mohave
    Lake Mohave is a large reservoir on the Colorado River along the Arizona–Nevada border, popular for boating, fishing, and other water recreation within the Lake Mead National Recreation Area.
  • E. Butte Lake
    Butte Lake is a scenic high-elevation lake in northern California known for its volcanic landscape, clear waters, and access to hiking and camping within Lassen Volcanic National Park.
  • 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: Lake Roosevelt
Triple: [Bureau of Reclamation, hasReservoirs, Lake Roosevelt]
Generated description
Lake Roosevelt is a large reservoir on the Columbia River in Washington State, created by the Grand Coulee Dam and used for hydroelectric power, irrigation, recreation, and water storage.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Lake Roosevelt
Target entity description: Lake Roosevelt is a large reservoir on the Columbia River in Washington State, created by the Grand Coulee Dam and used for hydroelectric power, irrigation, recreation, and water storage.
  • A. Lake Powell
    Lake Powell is a large, man-made reservoir on the Colorado River known for its striking red-rock canyon scenery and recreational boating in the American Southwest.
  • B. Lake Havasu
    Lake Havasu is a large reservoir on the Colorado River along the Arizona–California border, popular for boating, fishing, and the relocated London Bridge tourist attraction.
  • C. Lake Mead
    Lake Mead is a large man-made reservoir on the Colorado River in the southwestern United States, known for supplying water and hydroelectric power to millions of people in the region.
  • D. Lake Mohave
    Lake Mohave is a large reservoir on the Colorado River along the Arizona–Nevada border, popular for boating, fishing, and other water recreation within the Lake Mead National Recreation Area.
  • E. Butte Lake
    Butte Lake is a scenic high-elevation lake in northern California known for its volcanic landscape, clear waters, and access to hiking and camping within Lassen Volcanic National Park.
  • 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_69a4933352e08190ac617291985e76c0 completed March 1, 2026, 7:27 p.m.
NER Named-entity recognition batch_69a4bfc3a2848190891e73b351019d5b completed March 1, 2026, 10:37 p.m.
NED1 Entity disambiguation (via context triple) batch_69acde0ccff4819092948c249e0cb39b completed March 8, 2026, 2:25 a.m.
NEDg Description generation batch_69acde6b92bc819081bc5c1aae64d981 completed March 8, 2026, 2:26 a.m.
NED2 Entity disambiguation (via description) batch_69acded2e6a48190af7f135a0a4d8588 completed March 8, 2026, 2:28 a.m.
Created at: March 1, 2026, 7:50 p.m.