Triple
T21949090
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Nankai megathrust |
E542012
|
entity |
| Predicate | segmentName |
P21871
|
FINISHED |
| Object | Tonankai segment |
—
|
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: Tonankai segment | Statement: [Nankai megathrust, segmentName, Tonankai segment]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tonankai segment Context triple: [Nankai megathrust, segmentName, Tonankai segment]
-
A.
Tonankai segment
chosen
The Tonankai segment is a major section of the Nankai Trough subduction zone off central Japan, known for generating powerful megathrust earthquakes and tsunamis.
-
B.
Tokai segment
Tokai segment is a seismically active portion of the Nankai megathrust off central Japan, known for its potential to generate large, damaging earthquakes and tsunamis.
-
C.
Tokkō
Tokkō was the colloquial name for Japan’s prewar and wartime Special Higher Police, a political police force tasked with suppressing dissent and ideological opposition.
-
D.
Nankai segment
The Nankai segment is a major portion of the Nankai subduction zone off southwestern Japan that is known for generating powerful megathrust earthquakes and associated tsunamis.
-
E.
Hyuga-nada segment
The Hyuga-nada segment is a seismically active offshore region south of Kyushu, Japan, known for frequent earthquakes associated with the subduction of the Philippine Sea Plate.
- 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.