Triple

T13413948
Position Surface form Disambiguated ID Type / Status
Subject William Mulholland E313160 entity
Predicate associatedWith P37 FINISHED
Object St. Francis Dam disaster
The St. Francis Dam disaster was a catastrophic 1928 dam failure in California that unleashed a deadly flood, killing hundreds and prompting major reforms in American dam engineering and water management.
E1038932 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: St. Francis Dam disaster | Statement: [William Mulholland, associatedWith, St. Francis Dam disaster]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: St. Francis Dam disaster
Context triple: [William Mulholland, associatedWith, St. Francis Dam disaster]
  • A. Teton Dam failure flooding
    Teton Dam failure flooding refers to the catastrophic 1976 collapse of the Teton Dam in Idaho, which unleashed a massive flood that devastated downstream communities such as Rexburg.
  • B. Vanport flood of 1948
    The Vanport flood of 1948 was a catastrophic Columbia River flood that destroyed the wartime housing city of Vanport, Oregon, killing at least 15 people and displacing tens of thousands, many of them Black shipyard workers and their families.
  • C. Bonneville flood
    The Bonneville flood was a massive prehistoric outburst flood that occurred when ancient Lake Bonneville catastrophically drained, reshaping much of the Snake River Plain and surrounding landscapes in the northwestern United States.
  • D. Oroville Dam
    Oroville Dam is a large earthfill embankment dam on the Feather River in Northern California, serving as a key water storage, flood control, and hydroelectric facility.
  • E. San Andreas Dam
    San Andreas Dam is an earth-fill embankment dam in San Mateo County, California, that impounds San Andreas Lake as part of the Hetch Hetchy Regional Water System serving the San Francisco Bay Area.
  • 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: St. Francis Dam disaster
Triple: [William Mulholland, associatedWith, St. Francis Dam disaster]
Generated description
The St. Francis Dam disaster was a catastrophic 1928 dam failure in California that unleashed a deadly flood, killing hundreds and prompting major reforms in American dam engineering and water management.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: St. Francis Dam disaster
Target entity description: The St. Francis Dam disaster was a catastrophic 1928 dam failure in California that unleashed a deadly flood, killing hundreds and prompting major reforms in American dam engineering and water management.
  • A. Teton Dam failure flooding
    Teton Dam failure flooding refers to the catastrophic 1976 collapse of the Teton Dam in Idaho, which unleashed a massive flood that devastated downstream communities such as Rexburg.
  • B. Vanport flood of 1948
    The Vanport flood of 1948 was a catastrophic Columbia River flood that destroyed the wartime housing city of Vanport, Oregon, killing at least 15 people and displacing tens of thousands, many of them Black shipyard workers and their families.
  • C. Bonneville flood
    The Bonneville flood was a massive prehistoric outburst flood that occurred when ancient Lake Bonneville catastrophically drained, reshaping much of the Snake River Plain and surrounding landscapes in the northwestern United States.
  • D. Oroville Dam
    Oroville Dam is a large earthfill embankment dam on the Feather River in Northern California, serving as a key water storage, flood control, and hydroelectric facility.
  • E. San Andreas Dam
    San Andreas Dam is an earth-fill embankment dam in San Mateo County, California, that impounds San Andreas Lake as part of the Hetch Hetchy Regional Water System serving the San Francisco Bay Area.
  • 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_69d806ad0c44819088833ae1ec9e9690 completed April 9, 2026, 8:06 p.m.
NER Named-entity recognition batch_69dbaeb556948190af008c88e5bbf051 completed April 12, 2026, 2:39 p.m.
NED1 Entity disambiguation (via context triple) batch_69f7307e9b5881908eb2cd9e4fa7c5f2 completed May 3, 2026, 11:24 a.m.
NEDg Description generation batch_69f73195e4d88190ad356d0e3e18d34f completed May 3, 2026, 11:29 a.m.
NED2 Entity disambiguation (via description) batch_69f73220ffc08190bfb1b89757efd606 completed May 3, 2026, 11:31 a.m.
Created at: April 9, 2026, 9:39 p.m.