Triple

T21949047
Position Surface form Disambiguated ID Type / Status
Subject Eurasian Plate at the Nankai Trough E542011 entity
Predicate relatedEvent P37 FINISHED
Object Nankai megathrust earthquakes — NE NERFINISHED

How this triple was built (2 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: Nankai megathrust earthquakes | Statement: [Eurasian Plate at the Nankai Trough, relatedEvent, Nankai megathrust earthquakes]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Nankai megathrust earthquakes
Context triple: [Eurasian Plate at the Nankai Trough, relatedEvent, Nankai megathrust earthquakes]
  • A. Eurasian Plate at the Nankai Trough
    The Eurasian Plate at the Nankai Trough is a major tectonic plate margin off southwestern Japan where intense subduction-driven seismic and volcanic activity occurs.
  • B. Nankai megathrust chosen
    The Nankai megathrust is a major subduction-zone fault off southwestern Japan that has produced numerous powerful earthquakes and tsunamis and poses a significant seismic hazard to the region.
  • C. New Britain Trench subduction system
    The New Britain Trench subduction system is a major convergent plate boundary in the southwestern Pacific where an oceanic plate descends beneath another, driving intense seismic and volcanic activity in the New Britain region of Papua New Guinea.
  • D. Philippine subduction system
    The Philippine subduction system is a complex convergent plate boundary zone around the Philippine Sea Plate, characterized by multiple trenches, active subduction, frequent earthquakes, and volcanism.
  • E. Tonga-Kermadec subduction system
    The Tonga-Kermadec subduction system is a major convergent plate boundary in the southwest Pacific where the Pacific Plate descends beneath the Indo-Australian Plate, producing one of the world’s deepest ocean trenches and most active seismic and volcanic regions.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 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_69e0c47ef0e48190a50e1bcc43f4b3fd completed April 16, 2026, 11:14 a.m.
NER Named-entity recognition batch_69f1243aed048190b4342899c83b38ec completed April 28, 2026, 9:18 p.m.
Created at: April 16, 2026, 7:58 p.m.