Triple

T9867474
Position Surface form Disambiguated ID Type / Status
Subject San Gabriel River E239869 entity
Predicate impoundedBy P10781 FINISHED
Object North Fork Dam
North Fork Dam is a concrete flood-control and water-storage structure on the San Gabriel River in Los Angeles County, California.
 E350003 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: North Fork Dam | Statement: [San Gabriel River, impoundedBy, North Fork Dam]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: North Fork Dam
Context triple: [San Gabriel River, impoundedBy, North Fork Dam]
  • A. North Fork Dam
    North Fork Dam is a hydroelectric and water-supply dam located on the Clackamas River in northwestern Oregon.
  • B. Merwin Dam
    Merwin Dam is a hydroelectric dam on Washington State’s Lewis River that forms Lake Merwin and generates power for the region.
  • C. Fengman Dam
    Fengman Dam is a large hydroelectric gravity dam on the Songhua River in Jilin Province, China, known for its significant role in regional power generation and flood control.
  • D. Conklingville Dam
    Conklingville Dam is a concrete gravity dam in New York that created the Great Sacandaga Lake reservoir for flood control and hydroelectric power generation.
  • E. Lewiston Dam
    Lewiston Dam is a concrete structure on the Trinity River in Northern California that forms Lewiston Lake and helps regulate water storage and diversion within the Trinity River Basin.
  • 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: North Fork Dam
Triple: [San Gabriel River, impoundedBy, North Fork Dam]
Generated description
North Fork Dam is a concrete flood-control and water-storage structure on the San Gabriel River in Los Angeles County, California.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: North Fork Dam
Target entity description: North Fork Dam is a concrete flood-control and water-storage structure on the San Gabriel River in Los Angeles County, California.
  • A. North Fork Dam chosen
    North Fork Dam is a hydroelectric and water-supply dam located on the Clackamas River in northwestern Oregon.
  • B. Merwin Dam
    Merwin Dam is a hydroelectric dam on Washington State’s Lewis River that forms Lake Merwin and generates power for the region.
  • C. Fengman Dam
    Fengman Dam is a large hydroelectric gravity dam on the Songhua River in Jilin Province, China, known for its significant role in regional power generation and flood control.
  • D. Conklingville Dam
    Conklingville Dam is a concrete gravity dam in New York that created the Great Sacandaga Lake reservoir for flood control and hydroelectric power generation.
  • E. Lewiston Dam
    Lewiston Dam is a concrete structure on the Trinity River in Northern California that forms Lewiston Lake and helps regulate water storage and diversion within the Trinity River Basin.
  • F. None of above.

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_69ca84e7506c819095cbde4ff16512bb completed March 30, 2026, 2:12 p.m.
NER Named-entity recognition batch_69cdb3d209ac8190b9bc9ff017a132da completed April 2, 2026, 12:09 a.m.
NED1 Entity disambiguation (via context triple) batch_69d79445b9288190a684184285966fa8 completed April 9, 2026, 11:57 a.m.
NEDg Description generation batch_69d7bdde34408190a047ede29b91e182 completed April 9, 2026, 2:55 p.m.
NED2 Entity disambiguation (via description) batch_69d7e5fc6a008190b2a2326840074b53 completed April 9, 2026, 5:46 p.m.
Created at: March 30, 2026, 8:36 p.m.