Triple

T3474828
Position Surface form Disambiguated ID Type / Status
Subject Mendocino Fracture Zone E73345 entity
Predicate near P350 FINISHED
Object Cascadia Subduction Zone E15671 NE FINISHED

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: Cascadia Subduction Zone | Statement: [Mendocino Fracture Zone, near, Cascadia Subduction Zone]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Cascadia Subduction Zone
Context triple: [Mendocino Fracture Zone, near, Cascadia Subduction Zone]
  • A. Cascadia Subduction Zone chosen
    The Cascadia Subduction Zone is a major convergent plate boundary off the Pacific Northwest coast of North America, capable of generating powerful megathrust earthquakes and tsunamis.
  • B. Mariana subduction zone
    The Mariana subduction zone is a deep oceanic trench system in the western Pacific where the Pacific Plate is forced beneath the smaller Mariana Plate, creating one of the world's deepest and most active tectonic boundaries.
  • C. Juan de Fuca Ridge
    Juan de Fuca Ridge is an underwater volcanic spreading center in the northeastern Pacific Ocean where new oceanic crust forms as tectonic plates diverge.
  • D. Aleutian subduction system
    The Aleutian subduction system is a major tectonic plate boundary where the Pacific Plate is forced beneath the North American Plate, forming the Aleutian Trench and associated volcanic island arc in the North Pacific.
  • E. Nootka Fault
    Nootka Fault is a major transform fault off the coast of British Columbia that separates segments of the Explorer Plate and plays a key role in the tectonics of the Cascadia subduction zone.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69ad85b2fed48190948c8765e453d270 completed March 8, 2026, 2:20 p.m.
NER Named-entity recognition batch_69adbb580d4c819080bcc0bccd1e18e2 completed March 8, 2026, 6:09 p.m.
NED1 Entity disambiguation (via context triple) batch_69b36812e3a08190abe8db8d3429a49e completed March 13, 2026, 1:27 a.m.
Created at: March 8, 2026, 3:17 p.m.