Triple

T13868384
Position Surface form Disambiguated ID Type / Status
Subject Dolgarrog E333387 entity
Predicate hasHistoricEvent P259 FINISHED
Object Dolgarrog dam disaster
The Dolgarrog dam disaster was a catastrophic 1925 dam failure in the village of Dolgarrog, Wales, that caused a deadly flood and led to major changes in British dam safety regulations.
E1066675 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: Dolgarrog dam disaster | Statement: [Dolgarrog, hasHistoricEvent, Dolgarrog dam disaster]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Dolgarrog dam disaster
Context triple: [Dolgarrog, hasHistoricEvent, Dolgarrog dam disaster]
  • A. Tryweryn flooding
    Tryweryn flooding refers to the controversial 1960s inundation of the Welsh village of Capel Celyn to create a reservoir for supplying water to Liverpool, which became a powerful symbol of Welsh nationalism and political protest.
  • B. Tay Bridge disaster
    The Tay Bridge disaster was a catastrophic 1879 railway bridge collapse in Scotland during a violent storm, killing dozens of passengers and prompting major changes in bridge engineering and safety standards.
  • C. 1953 Tangiwai disaster
    The 1953 Tangiwai disaster was one of New Zealand’s worst railway tragedies, in which a passenger train plunged into the Whangaehu River after a lahar destroyed the Tangiwai rail bridge on Christmas Eve.
  • D. Trotternish landslip
    The Trotternish landslip is a dramatic, ancient landslide formation on the Isle of Skye in Scotland, renowned for its striking cliffs, pinnacles, and otherworldly landscapes.
  • E. The Staggerford Flood
    The Staggerford Flood is a novel by Iris Rainer Dart, best known for its portrayal of small-town life and interpersonal relationships in the wake of a devastating flood.
  • 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: Dolgarrog dam disaster
Triple: [Dolgarrog, hasHistoricEvent, Dolgarrog dam disaster]
Generated description
The Dolgarrog dam disaster was a catastrophic 1925 dam failure in the village of Dolgarrog, Wales, that caused a deadly flood and led to major changes in British dam safety regulations.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Dolgarrog dam disaster
Target entity description: The Dolgarrog dam disaster was a catastrophic 1925 dam failure in the village of Dolgarrog, Wales, that caused a deadly flood and led to major changes in British dam safety regulations.
  • A. Tryweryn flooding
    Tryweryn flooding refers to the controversial 1960s inundation of the Welsh village of Capel Celyn to create a reservoir for supplying water to Liverpool, which became a powerful symbol of Welsh nationalism and political protest.
  • B. Tay Bridge disaster
    The Tay Bridge disaster was a catastrophic 1879 railway bridge collapse in Scotland during a violent storm, killing dozens of passengers and prompting major changes in bridge engineering and safety standards.
  • C. 1953 Tangiwai disaster
    The 1953 Tangiwai disaster was one of New Zealand’s worst railway tragedies, in which a passenger train plunged into the Whangaehu River after a lahar destroyed the Tangiwai rail bridge on Christmas Eve.
  • D. Trotternish landslip
    The Trotternish landslip is a dramatic, ancient landslide formation on the Isle of Skye in Scotland, renowned for its striking cliffs, pinnacles, and otherworldly landscapes.
  • E. The Staggerford Flood
    The Staggerford Flood is a novel by Iris Rainer Dart, best known for its portrayal of small-town life and interpersonal relationships in the wake of a devastating flood.
  • 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_69d81c5ced9c8190b0e9bcc6effe5959 completed April 9, 2026, 9:38 p.m.
NER Named-entity recognition batch_69de05c530148190b11704300bbd5f9b completed April 14, 2026, 9:15 a.m.
NED1 Entity disambiguation (via context triple) batch_69f7c105da548190b908a54fec029236 completed May 3, 2026, 9:41 p.m.
NEDg Description generation batch_69f7c1e7efd88190ac07472647da69e7 completed May 3, 2026, 9:45 p.m.
NED2 Entity disambiguation (via description) batch_69f7c33c2f34819084502d5f03f09ddd completed May 3, 2026, 9:50 p.m.
Created at: April 9, 2026, 10:14 p.m.