Triple

T21949096
Position Surface form Disambiguated ID Type / Status
Subject Nankai megathrust E542012 entity
Predicate lastMajorEvent P146656 FINISHED
Object 1946 Nankai earthquake NE NERFINISHED

How this triple was built (3 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: 1946 Nankai earthquake | Statement: [Nankai megathrust, lastMajorEvent, 1946 Nankai earthquake]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: 1946 Nankai earthquake
Context triple: [Nankai megathrust, lastMajorEvent, 1946 Nankai earthquake]
  • A. 1946 Nankai earthquake chosen
    The 1946 Nankai earthquake was a powerful megathrust earthquake off the coast of southwestern Japan that generated a destructive tsunami and caused widespread damage and casualties in the Nankai region.
  • B. 1944 Tonankai earthquake
    The 1944 Tonankai earthquake was a powerful undersea megathrust earthquake off the coast of Japan that generated a destructive tsunami and caused extensive damage and loss of life in the Tōkai and Kii Peninsula regions during World War II.
  • C. 1854 Ansei-Nankai earthquake
    The 1854 Ansei-Nankai earthquake was a powerful undersea megathrust earthquake off Japan’s Nankai Trough that caused widespread destruction and tsunamis along the southwestern coast of Honshu and Shikoku during the late Edo period.
  • D. Great Kanto earthquake
    The Great Kanto earthquake was a devastating 1923 seismic disaster that struck the Tokyo-Yokohama region of Japan, causing massive destruction and loss of life.
  • E. 1854 Ansei-Tokai earthquake
    The 1854 Ansei-Tokai earthquake was a major Edo-period megathrust earthquake and tsunami that struck central Japan, causing widespread destruction and loss of life along the Pacific coast.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: lastMajorEvent
Context triple: [Nankai megathrust, lastMajorEvent, 1946 Nankai earthquake]
  • A. firstMajorEventAt
    Indicates that the referenced event is the earliest major event associated with the given entity, specifying when that first significant occurrence takes place.
  • B. isMajorEventOf
    Indicates that an event is a primary, significant, or defining occurrence within the context of another entity (such as a project, period, or process).
  • C. lastMajorRallyHeld
    Indicates the most recent significant rally event that was held for or by a given entity.
  • D. lastMajorCollapse
    Indicates the most recent significant breakdown or failure event that occurred in relation to the subject.
  • E. significantEventEnd
    Indicates the point in time when a significant event or occurrence comes to a close or is considered finished.
  • F. None of above. chosen

Provenance (4 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.
PD Predicate disambiguation batch_69e6f601f2188190893bcdde0cf58ad6 completed April 21, 2026, 3:58 a.m.
PDg Predicate description generation batch_69e6fb9b75308190addc3dba7b5d5ddd completed April 21, 2026, 4:22 a.m.
Created at: April 16, 2026, 7:58 p.m.