Triple

T21133629
Position Surface form Disambiguated ID Type / Status
Subject Pretoria Pit disaster (1910) E520752 entity
Predicate alsoKnownAs P39 FINISHED
Object Hulton Colliery disaster
The Hulton Colliery disaster, also known as the Pretoria Pit disaster, was a catastrophic 1910 coal mine explosion in Westhoughton, Lancashire, England, that killed over 300 miners and remains one of Britain’s worst mining tragedies.
E1471638 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: Hulton Colliery disaster | Statement: [Pretoria Pit disaster (1910), alsoKnownAs, Hulton Colliery disaster]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Hulton Colliery disaster
Context triple: [Pretoria Pit disaster (1910), alsoKnownAs, Hulton Colliery disaster]
  • A. Senghenydd colliery disaster
    The Senghenydd colliery disaster was a catastrophic coal mine explosion in Wales in 1913 that remains the worst mining accident in British history, killing over 400 miners.
  • B. Agecroft Colliery
    Agecroft Colliery was a major coal mine in Pendlebury, near Manchester, England, that operated from the 19th century until its closure in the early 1990s and played a significant role in the region’s industrial history.
  • C. Shakespeare Colliery
    Shakespeare Colliery was a coal mine in the Kent coalfield near Dover, England, notable as one of the early and more prominent pits in the region’s short-lived coal-mining industry.
  • D. Brora Colliery
    Brora Colliery was a coal mine that historically served as a key industrial employer and energy source for the village of Brora in the Scottish Highlands.
  • E. Milner Colliery
    Milner Colliery was a coal mine located within England’s Kent coalfield, part of the region’s early- to mid-20th-century coal mining industry.
  • 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: Hulton Colliery disaster
Triple: [Pretoria Pit disaster (1910), alsoKnownAs, Hulton Colliery disaster]
Generated description
The Hulton Colliery disaster, also known as the Pretoria Pit disaster, was a catastrophic 1910 coal mine explosion in Westhoughton, Lancashire, England, that killed over 300 miners and remains one of Britain’s worst mining tragedies.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Hulton Colliery disaster
Target entity description: The Hulton Colliery disaster, also known as the Pretoria Pit disaster, was a catastrophic 1910 coal mine explosion in Westhoughton, Lancashire, England, that killed over 300 miners and remains one of Britain’s worst mining tragedies.
  • A. Senghenydd colliery disaster
    The Senghenydd colliery disaster was a catastrophic coal mine explosion in Wales in 1913 that remains the worst mining accident in British history, killing over 400 miners.
  • B. Agecroft Colliery
    Agecroft Colliery was a major coal mine in Pendlebury, near Manchester, England, that operated from the 19th century until its closure in the early 1990s and played a significant role in the region’s industrial history.
  • C. Shakespeare Colliery
    Shakespeare Colliery was a coal mine in the Kent coalfield near Dover, England, notable as one of the early and more prominent pits in the region’s short-lived coal-mining industry.
  • D. Brora Colliery
    Brora Colliery was a coal mine that historically served as a key industrial employer and energy source for the village of Brora in the Scottish Highlands.
  • E. Milner Colliery
    Milner Colliery was a coal mine located within England’s Kent coalfield, part of the region’s early- to mid-20th-century coal mining industry.
  • 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_69e0b50b53048190ae34e8abbe3c5ada completed April 16, 2026, 10:08 a.m.
NER Named-entity recognition batch_69e7235847948190984c7009ca7f6189 completed April 21, 2026, 7:12 a.m.
NED1 Entity disambiguation (via context triple) batch_6a097ebb1b448190b31c23a480dfecae completed May 17, 2026, 8:39 a.m.
NEDg Description generation batch_6a097f7635f08190bf9552d4aa05063e completed May 17, 2026, 8:42 a.m.
NED2 Entity disambiguation (via description) batch_6a098037ffa4819095b1482d6bd83583 completed May 17, 2026, 8:45 a.m.
Created at: April 16, 2026, 2:56 p.m.