Triple

T2625329
Position Surface form Disambiguated ID Type / Status
Subject Heysel Stadium disaster E59103 entity
Predicate relatedTo P37 FINISHED
Object Bradford City stadium fire
The Bradford City stadium fire was a 1985 disaster at Valley Parade in Bradford, England, where a rapidly spreading blaze in the main stand killed 56 spectators and led to major reforms in football ground safety.
E284385 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: Bradford City stadium fire | Statement: [Heysel Stadium disaster, relatedTo, Bradford City stadium fire]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Bradford City stadium fire
Context triple: [Heysel Stadium disaster, relatedTo, Bradford City stadium fire]
  • A. Heysel Stadium disaster
    The Heysel Stadium disaster was a 1985 football tragedy in Brussels, where crowd violence and a stadium wall collapse before the European Cup final led to 39 deaths and prompted a long ban on English clubs from European competitions.
  • B. Hillsborough disaster
    The Hillsborough disaster was a 1989 human crush tragedy at an FA Cup semi-final in Sheffield that killed 97 Liverpool supporters and led to major reforms in English football stadium safety and policing.
  • C. Richmond Theatre fire
    The Richmond Theatre fire was a devastating 1811 blaze in Richmond, Virginia, that killed dozens of theatergoers and became one of the deadliest urban fires in early American history.
  • D. Ladbroke Grove rail crash
    The Ladbroke Grove rail crash was a major 1999 train collision near Paddington Station in London that resulted in 31 deaths, over 500 injuries, and significant scrutiny of UK rail safety and signaling practices.
  • E. Munich air disaster
    The Munich air disaster was a 1958 plane crash involving Manchester United’s “Busby Babes” that killed 23 people and became one of the most tragic and defining events in football history.
  • 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: Bradford City stadium fire
Triple: [Heysel Stadium disaster, relatedTo, Bradford City stadium fire]
Generated description
The Bradford City stadium fire was a 1985 disaster at Valley Parade in Bradford, England, where a rapidly spreading blaze in the main stand killed 56 spectators and led to major reforms in football ground safety.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Bradford City stadium fire
Target entity description: The Bradford City stadium fire was a 1985 disaster at Valley Parade in Bradford, England, where a rapidly spreading blaze in the main stand killed 56 spectators and led to major reforms in football ground safety.
  • A. Heysel Stadium disaster
    The Heysel Stadium disaster was a 1985 football tragedy in Brussels, where crowd violence and a stadium wall collapse before the European Cup final led to 39 deaths and prompted a long ban on English clubs from European competitions.
  • B. Hillsborough disaster
    The Hillsborough disaster was a 1989 human crush tragedy at an FA Cup semi-final in Sheffield that killed 97 Liverpool supporters and led to major reforms in English football stadium safety and policing.
  • C. Richmond Theatre fire
    The Richmond Theatre fire was a devastating 1811 blaze in Richmond, Virginia, that killed dozens of theatergoers and became one of the deadliest urban fires in early American history.
  • D. Ladbroke Grove rail crash
    The Ladbroke Grove rail crash was a major 1999 train collision near Paddington Station in London that resulted in 31 deaths, over 500 injuries, and significant scrutiny of UK rail safety and signaling practices.
  • E. Munich air disaster
    The Munich air disaster was a 1958 plane crash involving Manchester United’s “Busby Babes” that killed 23 people and became one of the most tragic and defining events in football history.
  • 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_69ab4ac558388190962492cd2e1b0ce6 completed March 6, 2026, 9:44 p.m.
NER Named-entity recognition batch_69abd8b061a08190b7a8459851abaae2 completed March 7, 2026, 7:50 a.m.
NED1 Entity disambiguation (via context triple) batch_69af909e02d0819082377681f4376531 completed March 10, 2026, 3:31 a.m.
NEDg Description generation batch_69af9359975c8190b76029f4555039f9 completed March 10, 2026, 3:43 a.m.
NED2 Entity disambiguation (via description) batch_69af941e2d588190a9754df030d25301 completed March 10, 2026, 3:46 a.m.
Created at: March 6, 2026, 9:50 p.m.