Triple

T9047612
Position Surface form Disambiguated ID Type / Status
Subject Soham E216796 entity
Predicate hasNotableEvent P259 FINISHED
Object Soham rail disaster
The Soham rail disaster was a 1944 World War II incident in Cambridgeshire, England, in which a burning ammunition train was heroically brought to a halt before exploding, saving the town from catastrophic destruction.
E774423 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: Soham rail disaster | Statement: [Soham, hasNotableEvent, Soham rail disaster]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Soham rail disaster
Context triple: [Soham, hasNotableEvent, Soham rail disaster]
  • A. Hatfield rail crash
    The Hatfield rail crash was a fatal 2000 train derailment in Hertfordshire, England, that exposed serious track maintenance failures and triggered major reforms in the UK rail industry.
  • B. Amagasaki derailment
    The Amagasaki derailment was a deadly 2005 train accident in Hyōgo Prefecture, Japan, in which a commuter train left the tracks and crashed into an apartment building, prompting major scrutiny of railway safety practices.
  • C. Montparnasse derailment
    The Montparnasse derailment was a famous 1895 train accident in Paris in which a locomotive overran the buffers at Gare Montparnasse and dramatically crashed through the station wall onto the street below.
  • 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. Bhopal disaster
    The Bhopal disaster was a catastrophic 1984 industrial gas leak in Bhopal, India, widely regarded as one of the world’s worst industrial accidents due to its massive death toll and long-term health and environmental impacts.
  • 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: Soham rail disaster
Triple: [Soham, hasNotableEvent, Soham rail disaster]
Generated description
The Soham rail disaster was a 1944 World War II incident in Cambridgeshire, England, in which a burning ammunition train was heroically brought to a halt before exploding, saving the town from catastrophic destruction.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Soham rail disaster
Target entity description: The Soham rail disaster was a 1944 World War II incident in Cambridgeshire, England, in which a burning ammunition train was heroically brought to a halt before exploding, saving the town from catastrophic destruction.
  • A. Hatfield rail crash
    The Hatfield rail crash was a fatal 2000 train derailment in Hertfordshire, England, that exposed serious track maintenance failures and triggered major reforms in the UK rail industry.
  • B. Amagasaki derailment
    The Amagasaki derailment was a deadly 2005 train accident in Hyōgo Prefecture, Japan, in which a commuter train left the tracks and crashed into an apartment building, prompting major scrutiny of railway safety practices.
  • C. Montparnasse derailment
    The Montparnasse derailment was a famous 1895 train accident in Paris in which a locomotive overran the buffers at Gare Montparnasse and dramatically crashed through the station wall onto the street below.
  • 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. Bhopal disaster
    The Bhopal disaster was a catastrophic 1984 industrial gas leak in Bhopal, India, widely regarded as one of the world’s worst industrial accidents due to its massive death toll and long-term health and environmental impacts.
  • 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_69ca83d362e88190ae44b4e4dc194209 completed March 30, 2026, 2:08 p.m.
NER Named-entity recognition batch_69cc6b5022c88190ab6b6de3c3830a41 completed April 1, 2026, 12:48 a.m.
NED1 Entity disambiguation (via context triple) batch_69cfebb7f668819099125ab727cd50b1 completed April 3, 2026, 4:32 p.m.
NEDg Description generation batch_69cfed8970448190b3deac1d8f46c639 completed April 3, 2026, 4:40 p.m.
NED2 Entity disambiguation (via description) batch_69cfedf299908190852cc627fd7134b9 completed April 3, 2026, 4:42 p.m.
Created at: March 30, 2026, 7:09 p.m.