Triple

T13607451
Position Surface form Disambiguated ID Type / Status
Subject Castaic Lake E325101 entity
Predicate hasPart P35 FINISHED
Object Upper Castaic Lake
Upper Castaic Lake is a smaller, upstream reservoir segment of the larger Castaic Lake system in Los Angeles County, California, used primarily for water storage and recreation.
E1051945 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: Upper Castaic Lake | Statement: [Castaic Lake, hasPart, Upper Castaic Lake]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Upper Castaic Lake
Context triple: [Castaic Lake, hasPart, Upper Castaic Lake]
  • A. Upper Lake, California
    Upper Lake, California is a small unincorporated community in Lake County known for its rural character and proximity to Clear Lake and surrounding outdoor recreation areas.
  • B. Upper Lake
    Upper Lake is an ornamental body of water within the landscaped grounds of Blenheim Palace in Oxfordshire, England.
  • C. Upper Lake
    Upper Lake is a historic man-made reservoir in Bhopal, India, known as one of the oldest and largest artificial lakes in the country and a key source of the city's drinking water.
  • D. Santa Margarita Lake
    Santa Margarita Lake is a reservoir and regional park in San Luis Obispo County, California, popular for fishing, boating, camping, and wildlife viewing.
  • E. Shasta Lake
    Shasta Lake is a large reservoir in Northern California known for its extensive shoreline, houseboating, and proximity to Mount Shasta.
  • 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: Upper Castaic Lake
Triple: [Castaic Lake, hasPart, Upper Castaic Lake]
Generated description
Upper Castaic Lake is a smaller, upstream reservoir segment of the larger Castaic Lake system in Los Angeles County, California, used primarily for water storage and recreation.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Upper Castaic Lake
Target entity description: Upper Castaic Lake is a smaller, upstream reservoir segment of the larger Castaic Lake system in Los Angeles County, California, used primarily for water storage and recreation.
  • A. Upper Lake, California
    Upper Lake, California is a small unincorporated community in Lake County known for its rural character and proximity to Clear Lake and surrounding outdoor recreation areas.
  • B. Upper Lake
    Upper Lake is a historic man-made reservoir in Bhopal, India, known as one of the oldest and largest artificial lakes in the country and a key source of the city's drinking water.
  • C. Upper Lake
    Upper Lake is an ornamental body of water within the landscaped grounds of Blenheim Palace in Oxfordshire, England.
  • D. Santa Margarita Lake
    Santa Margarita Lake is a reservoir and regional park in San Luis Obispo County, California, popular for fishing, boating, camping, and wildlife viewing.
  • E. Shasta Lake
    Shasta Lake is a large reservoir in Northern California known for its extensive shoreline, houseboating, and proximity to Mount Shasta.
  • 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_69d80769eaf081909d82f44e484d6113 completed April 9, 2026, 8:09 p.m.
NER Named-entity recognition batch_69dbb07f462c8190b5b5e115d550037f completed April 12, 2026, 2:47 p.m.
NED1 Entity disambiguation (via context triple) batch_69f77f96280881908bab3af5c80f6d55 completed May 3, 2026, 5:02 p.m.
NEDg Description generation batch_69f780850ffc8190b41b3ff7ca35494f completed May 3, 2026, 5:06 p.m.
NED2 Entity disambiguation (via description) batch_69f7849416b88190a0ef9d3e26e7b129 completed May 3, 2026, 5:23 p.m.
Created at: April 9, 2026, 9:50 p.m.