Triple

T13776220
Position Surface form Disambiguated ID Type / Status
Subject Colorado River Aqueduct E331013 entity
Predicate endPoint P390 FINISHED
Object Lake Mathews
Lake Mathews is a large man-made reservoir in Riverside County, California, that serves as a key water storage and distribution facility for the Los Angeles metropolitan area.
E1059746 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 Mathews | Statement: [Colorado River Aqueduct, endPoint, Lake Mathews]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Lake Mathews
Context triple: [Colorado River Aqueduct, endPoint, Lake Mathews]
  • A. Lake Dunmore
    Lake Dunmore is a scenic freshwater lake in central Vermont known for recreation, summer camps, and its surrounding state park.
  • B. Lake Welch
    Lake Welch is a popular recreational lake in New York’s Harriman State Park, known for its large sandy beach, swimming, and picnicking facilities.
  • C. Lake Hamilton
    Lake Hamilton is a popular recreational reservoir near Hot Springs, Arkansas, known for boating, fishing, and lakeside vacation homes.
  • D. Lake Sanford
    Lake Sanford is a remote Adirondack lake in New York State known for its scenic wilderness setting and proximity to the former mining village of Tahawus.
  • E. Lake Bryan
    Lake Bryan is a popular recreational reservoir near Bryan, Texas, known for activities such as fishing, boating, hiking, and lakeside camping.
  • 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 Mathews
Triple: [Colorado River Aqueduct, endPoint, Lake Mathews]
Generated description
Lake Mathews is a large man-made reservoir in Riverside County, California, that serves as a key water storage and distribution facility for the Los Angeles metropolitan area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Lake Mathews
Target entity description: Lake Mathews is a large man-made reservoir in Riverside County, California, that serves as a key water storage and distribution facility for the Los Angeles metropolitan area.
  • A. Lake Dunmore
    Lake Dunmore is a scenic freshwater lake in central Vermont known for recreation, summer camps, and its surrounding state park.
  • B. Lake Welch
    Lake Welch is a popular recreational lake in New York’s Harriman State Park, known for its large sandy beach, swimming, and picnicking facilities.
  • C. Lake Hamilton
    Lake Hamilton is a popular recreational reservoir near Hot Springs, Arkansas, known for boating, fishing, and lakeside vacation homes.
  • D. Lake Sanford
    Lake Sanford is a remote Adirondack lake in New York State known for its scenic wilderness setting and proximity to the former mining village of Tahawus.
  • E. Lake Bryan
    Lake Bryan is a popular recreational reservoir near Bryan, Texas, known for activities such as fishing, boating, hiking, and lakeside camping.
  • 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_69d81c583b0081909e408a17db517a21 completed April 9, 2026, 9:38 p.m.
NER Named-entity recognition batch_69de0238bdbc8190a946e6e5431632a5 completed April 14, 2026, 9 a.m.
NED1 Entity disambiguation (via context triple) batch_69f7a86c9ff88190a2e4f6aa907f2eba completed May 3, 2026, 7:56 p.m.
NEDg Description generation batch_69f7a968c3508190b1a86accb71b34cf completed May 3, 2026, 8 p.m.
NED2 Entity disambiguation (via description) batch_69f7aa2f696081908f48d44bf7271abc completed May 3, 2026, 8:03 p.m.
Created at: April 9, 2026, 10:10 p.m.