Triple
T15633441
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | 1944 Tonankai earthquake |
E375877
|
entity |
| Predicate | location |
P40
|
FINISHED |
| Object | Nankai Trough |
E77321
|
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: Nankai Trough | Statement: [1944 Tonankai earthquake, location, Nankai Trough]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Nankai Trough Context triple: [1944 Tonankai earthquake, location, Nankai Trough]
-
A.
Nankai Trough
chosen
The Nankai Trough is a major submarine trench off the coast of southwestern Japan, known as a highly active subduction zone capable of generating powerful megathrust earthquakes and tsunamis.
-
B.
Sagami Trough
Sagami Trough is a deep submarine trench off central Japan that marks a major tectonic plate boundary and is associated with significant seismic and tsunami activity.
-
C.
Okinawa Trough
The Okinawa Trough is a back-arc basin in the East China Sea, located between the Ryukyu Islands and mainland Asia, known for its active tectonics and hydrothermal activity.
-
D.
Japan Trench
The Japan Trench is a deep oceanic trench off northeastern Japan where the Pacific Plate subducts beneath the Okhotsk Plate, forming part of the Pacific Ring of Fire and generating powerful earthquakes and tsunamis.
-
E.
Izu–Ogasawara Trench
The Izu–Ogasawara Trench is a deep oceanic trench in the western Pacific formed by the subduction of the Pacific Plate beneath the Philippine Sea Plate, contributing to intense seismic and volcanic activity in the region.
- 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_69d85cd035a48190b73d5579ab73969a |
completed | April 10, 2026, 2:13 a.m. |
| NER | Named-entity recognition | batch_69e04eb7338881909f3c430bb73f91d1 |
completed | April 16, 2026, 2:51 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ff5f472b648190b7cd532a1b16373e |
completed | May 9, 2026, 4:22 p.m. |
Created at: April 10, 2026, 4:14 a.m.