Triple
T21949089
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Nankai megathrust |
E542012
|
entity |
| Predicate | segmentName |
P21871
|
FINISHED |
| Object | Tokai 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: Tokai segment | Statement: [Nankai megathrust, segmentName, Tokai segment]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tokai segment Context triple: [Nankai megathrust, segmentName, Tokai segment]
-
A.
Tokai segment
chosen
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.
-
B.
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.
-
C.
Tonankai segment
The Tonankai segment is a major section of the Nankai Trough subduction zone off central Japan, known for generating powerful megathrust earthquakes and tsunamis.
-
D.
Kanmon area
The Kanmon area is the region surrounding the Kanmon Straits, which separate Japan’s Honshu and Kyushu islands and serve as a key transportation and shipping corridor.
-
E.
Tōkai industrial belt
The Tōkai industrial belt is a major Japanese industrial region along the Pacific coast, known for its dense concentration of manufacturing facilities, particularly in the automotive, machinery, and chemical sectors.
- 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.