Triple

T8436429
Position Surface form Disambiguated ID Type / Status
Subject Niuatoputapu Island E199234 entity
Predicate experiencedEvent P149 FINISHED
Object 2009 Samoa Islands earthquake and tsunami
The 2009 Samoa Islands earthquake and tsunami was a powerful undersea megathrust earthquake in the South Pacific that generated devastating tsunamis, causing significant loss of life and widespread destruction across Samoa, American Samoa, and nearby islands.
E733764 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: 2009 Samoa Islands earthquake and tsunami | Statement: [Niuatoputapu Island, experiencedEvent, 2009 Samoa Islands earthquake and tsunami]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: 2009 Samoa Islands earthquake and tsunami
Context triple: [Niuatoputapu Island, experiencedEvent, 2009 Samoa Islands earthquake and tsunami]
  • A. 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.
  • B. 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.
  • C. 2006 Kīholo Bay earthquake
    The 2006 Kīholo Bay earthquake was a powerful undersea earthquake off the northwest coast of Hawaiʻi Island that caused widespread structural damage and power outages across the Hawaiian Islands.
  • D. 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.
  • E. 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.
  • 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: 2009 Samoa Islands earthquake and tsunami
Triple: [Niuatoputapu Island, experiencedEvent, 2009 Samoa Islands earthquake and tsunami]
Generated description
The 2009 Samoa Islands earthquake and tsunami was a powerful undersea megathrust earthquake in the South Pacific that generated devastating tsunamis, causing significant loss of life and widespread destruction across Samoa, American Samoa, and nearby islands.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: 2009 Samoa Islands earthquake and tsunami
Target entity description: The 2009 Samoa Islands earthquake and tsunami was a powerful undersea megathrust earthquake in the South Pacific that generated devastating tsunamis, causing significant loss of life and widespread destruction across Samoa, American Samoa, and nearby islands.
  • A. 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.
  • B. 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.
  • C. 2006 Kīholo Bay earthquake
    The 2006 Kīholo Bay earthquake was a powerful undersea earthquake off the northwest coast of Hawaiʻi Island that caused widespread structural damage and power outages across the Hawaiian Islands.
  • D. 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.
  • E. 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.
  • 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_69ca8314cd6c8190a6b8c2a1096e18f3 completed March 30, 2026, 2:05 p.m.
NER Named-entity recognition batch_69cbe132a6f881908f990089792fccc4 completed March 31, 2026, 2:58 p.m.
NED1 Entity disambiguation (via context triple) batch_69ce1d7d19608190ad3160fc00f8d4b0 completed April 2, 2026, 7:40 a.m.
NEDg Description generation batch_69ce1ea3aaf881909562b65cefb20089 completed April 2, 2026, 7:45 a.m.
NED2 Entity disambiguation (via description) batch_69ce1f8d748c81909b331ed822919447 completed April 2, 2026, 7:49 a.m.
Created at: March 30, 2026, 6:08 p.m.