Triple

T21213958
Position Surface form Disambiguated ID Type / Status
Subject California portion of Truckee River Basin E522788 entity
Predicate containsProtectedArea P855 FINISHED
Object Lake Tahoe Basin Management Unit — NE NERFINISHED

How this triple was built (2 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 Tahoe Basin Management Unit | Statement: [California portion of Truckee River Basin, containsProtectedArea, Lake Tahoe Basin Management Unit]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Lake Tahoe Basin Management Unit
Context triple: [California portion of Truckee River Basin, containsProtectedArea, Lake Tahoe Basin Management Unit]
  • A. Lake Tahoe Basin Management Unit chosen
    The Lake Tahoe Basin Management Unit is a U.S. Forest Service administrative unit responsible for managing federal lands and natural resources in the Lake Tahoe Basin region.
  • B. Lake Tahoe Basin
    The Lake Tahoe Basin is a high-altitude watershed in the Sierra Nevada centered on Lake Tahoe, renowned for its clear alpine lake, surrounding forests, and year-round outdoor recreation.
  • C. Lake Tahoe Nevada State Park
    Lake Tahoe Nevada State Park is a scenic protected area on the Nevada side of Lake Tahoe, known for its clear blue waters, sandy beaches, granite boulders, and popular recreation spots like Sand Harbor.
  • D. Tahoe National Forest
    Tahoe National Forest is a large U.S. national forest in the northern Sierra Nevada of California, known for its alpine landscapes, extensive recreation opportunities, and diverse wildlife habitats.
  • E. Tahoe Regional Planning Agency
    The Tahoe Regional Planning Agency is a bi-state regulatory body responsible for coordinating environmental protection, land use, and development planning in the Lake Tahoe Basin.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

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_69e0b511ed84819099b449b4a111085c completed April 16, 2026, 10:08 a.m.
NER Named-entity recognition batch_69e7347088488190aa764b3f4bbac44d completed April 21, 2026, 8:25 a.m.
Created at: April 16, 2026, 3:39 p.m.