Triple

T1840634
Position Surface form Disambiguated ID Type / Status
Subject Sumatra subduction zone E41168 entity
Predicate knownFor P22 FINISHED
Object 2010 Mentawai earthquake and tsunami
The 2010 Mentawai earthquake and tsunami was a powerful undersea megathrust event off western Sumatra that generated a destructive tsunami, killing hundreds of people and devastating coastal communities in the Mentawai Islands of Indonesia.
E207246 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: 2010 Mentawai earthquake and tsunami | Statement: [Sumatra subduction zone, knownFor, 2010 Mentawai earthquake and tsunami]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: 2010 Mentawai earthquake and tsunami
Context triple: [Sumatra subduction zone, knownFor, 2010 Mentawai earthquake and tsunami]
  • A. 2005 Nias–Simeulue earthquake
    The 2005 Nias–Simeulue earthquake was a powerful magnitude 8.6 megathrust earthquake off the coast of northern Sumatra that caused widespread destruction and significant casualties in Indonesia.
  • B. 2004 Indian Ocean earthquake and tsunami
    The 2004 Indian Ocean earthquake and tsunami was a massive undersea megathrust earthquake off the coast of Sumatra that triggered devastating tsunamis across the Indian Ocean, killing over 200,000 people and becoming one of the deadliest natural disasters in recorded history.
  • C. 2011 Tōhoku earthquake and tsunami
    The 2011 Tōhoku earthquake and tsunami was a devastating magnitude 9.0 undersea megathrust earthquake off Japan’s northeastern coast that triggered massive tsunamis, widespread destruction, and the Fukushima Daiichi nuclear disaster.
  • D. 2018 Anak Krakatau eruption and tsunami
    The 2018 Anak Krakatau eruption and tsunami was a deadly volcanic disaster in Indonesia in which a partial collapse of the Anak Krakatau volcano triggered a tsunami that devastated coastal communities and caused significant loss of life and infrastructure.
  • E. 2010 Haiti earthquake
    The 2010 Haiti earthquake was a catastrophic magnitude 7.0 seismic event that struck near Haiti’s capital, causing massive destruction, hundreds of thousands of deaths, and a major international humanitarian crisis.
  • 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: 2010 Mentawai earthquake and tsunami
Triple: [Sumatra subduction zone, knownFor, 2010 Mentawai earthquake and tsunami]
Generated description
The 2010 Mentawai earthquake and tsunami was a powerful undersea megathrust event off western Sumatra that generated a destructive tsunami, killing hundreds of people and devastating coastal communities in the Mentawai Islands of Indonesia.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: 2010 Mentawai earthquake and tsunami
Target entity description: The 2010 Mentawai earthquake and tsunami was a powerful undersea megathrust event off western Sumatra that generated a destructive tsunami, killing hundreds of people and devastating coastal communities in the Mentawai Islands of Indonesia.
  • A. 2005 Nias–Simeulue earthquake
    The 2005 Nias–Simeulue earthquake was a powerful magnitude 8.6 megathrust earthquake off the coast of northern Sumatra that caused widespread destruction and significant casualties in Indonesia.
  • B. 2004 Indian Ocean earthquake and tsunami
    The 2004 Indian Ocean earthquake and tsunami was a massive undersea megathrust earthquake off the coast of Sumatra that triggered devastating tsunamis across the Indian Ocean, killing over 200,000 people and becoming one of the deadliest natural disasters in recorded history.
  • C. 2011 Tōhoku earthquake and tsunami
    The 2011 Tōhoku earthquake and tsunami was a devastating magnitude 9.0 undersea megathrust earthquake off Japan’s northeastern coast that triggered massive tsunamis, widespread destruction, and the Fukushima Daiichi nuclear disaster.
  • D. 2018 Anak Krakatau eruption and tsunami
    The 2018 Anak Krakatau eruption and tsunami was a deadly volcanic disaster in Indonesia in which a partial collapse of the Anak Krakatau volcano triggered a tsunami that devastated coastal communities and caused significant loss of life and infrastructure.
  • E. 2010 Haiti earthquake
    The 2010 Haiti earthquake was a catastrophic magnitude 7.0 seismic event that struck near Haiti’s capital, causing massive destruction, hundreds of thousands of deaths, and a major international humanitarian crisis.
  • 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_69a88647f9388190909bc36e795bdaec completed March 4, 2026, 7:21 p.m.
NER Named-entity recognition batch_69abb03c5e8081909578eaba8d82c264 completed March 7, 2026, 4:57 a.m.
NED1 Entity disambiguation (via context triple) batch_69add1c482908190b940497fc5d5db60 completed March 8, 2026, 7:45 p.m.
NEDg Description generation batch_69add2ac44f48190bd62c504b31210e8 completed March 8, 2026, 7:49 p.m.
NED2 Entity disambiguation (via description) batch_69add305bd108190b5e7e0f3d30a2c58 completed March 8, 2026, 7:50 p.m.
Created at: March 4, 2026, 7:33 p.m.