Triple

T963067
Position Surface form Disambiguated ID Type / Status
Subject Iwo Jima E20777 entity
Predicate volcanicArc P2408 FINISHED
Object Izu–Bonin–Mariana Arc E50688 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: Izu–Bonin–Mariana Arc | Statement: [Iwo Jima, volcanicArc, Izu–Bonin–Mariana Arc]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Izu–Bonin–Mariana Arc
Context triple: [Iwo Jima, volcanicArc, Izu–Bonin–Mariana Arc]
  • A. Izu–Bonin Arc chosen
    The Izu–Bonin Arc is a volcanic island arc in the western Pacific Ocean formed by subduction along the boundary of the Philippine Sea Plate, stretching south from Japan’s Izu Peninsula toward the Mariana Islands.
  • B. Aleutian Arc
    The Aleutian Arc is a major volcanic island chain and subduction zone stretching from Alaska toward Russia, forming part of the tectonically active northern boundary of the Pacific Ocean.
  • C. Mariana volcanic arc
    The Mariana volcanic arc is a chain of active and dormant volcanoes in the western Pacific Ocean formed by the subduction of the Pacific Plate beneath the Philippine Sea Plate.
  • D. Kyushu–Palau Ridge system
    The Kyushu–Palau Ridge system is a major underwater volcanic island arc and tectonic ridge in the Philippine Sea, formed by subduction-related processes along the western Pacific margin.
  • E. Northeastern Japan Arc
    The Northeastern Japan Arc is a major volcanic arc in northern Honshu formed by subduction along the Japan Trench, characterized by numerous active and dormant volcanoes including Mount Akagi.
  • 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_69a493b21f2881908132dcf45dcd2f36 completed March 1, 2026, 7:29 p.m.
NER Named-entity recognition batch_69a4b416cf4c8190bd685227db25fb53 completed March 1, 2026, 9:48 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac17034cf48190bca513891cfcc444 completed March 7, 2026, 12:16 p.m.
Created at: March 1, 2026, 7:40 p.m.