Triple

T19286894
Position Surface form Disambiguated ID Type / Status
Subject South Fork Feather River E482336 entity
Predicate hasDam P8736 FINISHED
Object Lost Creek Dam
Lost Creek Dam is a concrete arch dam in California that impounds the South Fork Feather River to provide water storage, hydroelectric power, and recreational opportunities.
E1526470 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: Lost Creek Dam | Statement: [South Fork Feather River, hasDam, Lost Creek Dam]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Lost Creek Dam
Context triple: [South Fork Feather River, hasDam, Lost Creek Dam]
  • A. LaBarge Dam
    LaBarge Dam is a small hydroengineering structure located on the Thornapple River in Michigan, used primarily for water level control and local recreation.
  • B. Slab Creek Dam
    Slab Creek Dam is a concrete gravity dam on the South Fork American River in El Dorado County, California, forming Slab Creek Reservoir as part of regional hydroelectric and water management operations.
  • C. Anderson Ranch Dam
    Anderson Ranch Dam is a large concrete arch dam in southwestern Idaho that creates Anderson Ranch Reservoir and provides hydroelectric power, irrigation storage, and flood control on the Boise River.
  • D. Walter Hill Dam
    Walter Hill Dam is a small historic dam and recreational site on the East Fork of the Stones River in Rutherford County, Tennessee.
  • E. Chatfield Dam
    Chatfield Dam is a large flood-control and water-storage structure in Colorado that creates Chatfield Reservoir on the South Platte River near Denver.
  • 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: Lost Creek Dam
Triple: [South Fork Feather River, hasDam, Lost Creek Dam]
Generated description
Lost Creek Dam is a concrete arch dam in California that impounds the South Fork Feather River to provide water storage, hydroelectric power, and recreational opportunities.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Lost Creek Dam
Target entity description: Lost Creek Dam is a concrete arch dam in California that impounds the South Fork Feather River to provide water storage, hydroelectric power, and recreational opportunities.
  • A. LaBarge Dam
    LaBarge Dam is a small hydroengineering structure located on the Thornapple River in Michigan, used primarily for water level control and local recreation.
  • B. Slab Creek Dam
    Slab Creek Dam is a concrete gravity dam on the South Fork American River in El Dorado County, California, forming Slab Creek Reservoir as part of regional hydroelectric and water management operations.
  • C. Anderson Ranch Dam
    Anderson Ranch Dam is a large concrete arch dam in southwestern Idaho that creates Anderson Ranch Reservoir and provides hydroelectric power, irrigation storage, and flood control on the Boise River.
  • D. Walter Hill Dam
    Walter Hill Dam is a small historic dam and recreational site on the East Fork of the Stones River in Rutherford County, Tennessee.
  • E. Chatfield Dam
    Chatfield Dam is a large flood-control and water-storage structure in Colorado that creates Chatfield Reservoir on the South Platte River near Denver.
  • 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_69d8e8cf61b0819096fe3e4107827c4e completed April 10, 2026, 12:10 p.m.
NER Named-entity recognition batch_69e5fc032f108190a89e47d1458f3f55 completed April 20, 2026, 10:12 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0ab63e2fd4819096d4267b90f56fff completed May 18, 2026, 6:48 a.m.
NEDg Description generation batch_6a0ab738e6e081909d23bcbcbf3d4abb completed May 18, 2026, 6:52 a.m.
NED2 Entity disambiguation (via description) batch_6a0ab7bb6fbc81909e54be3d1ae98cbf completed May 18, 2026, 6:54 a.m.
Created at: April 10, 2026, 1:30 p.m.