Triple

T7217891
Position Surface form Disambiguated ID Type / Status
Subject Daegu Metro E150181 entity
Predicate safetyIncident P259 FINISHED
Object Daegu subway fire
The Daegu subway fire was a catastrophic arson attack on a South Korean metro train in 2003 that killed nearly 200 people and led to major reforms in urban rail safety.
E649957 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: Daegu subway fire | Statement: [Daegu Metro, safetyIncident, Daegu subway fire]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Daegu subway fire
Context triple: [Daegu Metro, safetyIncident, Daegu subway fire]
  • A. 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.
  • B. Bombardment of Yeonpyeong
    The Bombardment of Yeonpyeong was a 2010 North Korean artillery attack on the South Korean island of Yeonpyeong that marked one of the most serious military clashes between the two Koreas since the Korean War.
  • C. Jagalchi Station
    Jagalchi Station is a subway station in Busan, South Korea, serving the bustling Jagalchi Fish Market area and nearby downtown attractions.
  • D. Sinking of ROKS Cheonan
    The Sinking of ROKS Cheonan was a 2010 incident in which a South Korean naval corvette was destroyed near the disputed maritime border with North Korea, killing 46 sailors and sharply escalating inter-Korean tensions.
  • E. February 28 Incident
    The February 28 Incident was a 1947 anti-government uprising in Taiwan and its brutal suppression by the Kuomintang authorities, marking a pivotal and traumatic event in Taiwanese 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: Daegu subway fire
Triple: [Daegu Metro, safetyIncident, Daegu subway fire]
Generated description
The Daegu subway fire was a catastrophic arson attack on a South Korean metro train in 2003 that killed nearly 200 people and led to major reforms in urban rail safety.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Daegu subway fire
Target entity description: The Daegu subway fire was a catastrophic arson attack on a South Korean metro train in 2003 that killed nearly 200 people and led to major reforms in urban rail safety.
  • A. 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.
  • B. Bombardment of Yeonpyeong
    The Bombardment of Yeonpyeong was a 2010 North Korean artillery attack on the South Korean island of Yeonpyeong that marked one of the most serious military clashes between the two Koreas since the Korean War.
  • C. Jagalchi Station
    Jagalchi Station is a subway station in Busan, South Korea, serving the bustling Jagalchi Fish Market area and nearby downtown attractions.
  • D. Sinking of ROKS Cheonan
    The Sinking of ROKS Cheonan was a 2010 incident in which a South Korean naval corvette was destroyed near the disputed maritime border with North Korea, killing 46 sailors and sharply escalating inter-Korean tensions.
  • E. February 28 Incident
    The February 28 Incident was a 1947 anti-government uprising in Taiwan and its brutal suppression by the Kuomintang authorities, marking a pivotal and traumatic event in Taiwanese 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_69c687effb44819092b95d07d0368c9f completed March 27, 2026, 1:36 p.m.
NER Named-entity recognition batch_69c6e99170d88190b1aef326a7d81134 completed March 27, 2026, 8:33 p.m.
NED1 Entity disambiguation (via context triple) batch_69c7cbfb46388190992cc98039e71748 completed March 28, 2026, 12:39 p.m.
NEDg Description generation batch_69c7cce6a290819096ff68333cd3a3cf completed March 28, 2026, 12:43 p.m.
NED2 Entity disambiguation (via description) batch_69c7cd9966e481909eb3c23bb59777d9 completed March 28, 2026, 12:46 p.m.
Created at: March 27, 2026, 2:53 p.m.