Triple

T3646889
Position Surface form Disambiguated ID Type / Status
Subject Nankai Trough E77321 entity
Predicate associatedEarthquake P12618 FINISHED
Object 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.
E378922 NE FINISHED

How this triple was built (5 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: 1854 Ansei-Tokai earthquake | Statement: [Nankai Trough, associatedEarthquake, 1854 Ansei-Tokai earthquake]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: 1854 Ansei-Tokai earthquake
Context triple: [Nankai Trough, associatedEarthquake, 1854 Ansei-Tokai earthquake]
  • A. 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.
  • B. 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.
  • C. 1946 Nankai earthquake
    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.
  • D. Great Hanshin earthquake
    The Great Hanshin earthquake was a devastating 1995 seismic disaster in Japan that caused widespread destruction and loss of life, particularly in the city of Kobe.
  • E. 2011 Tōhoku earthquake and tsunami
    The 2011 Tōhoku earthquake and tsunami was a devastating magnitude 9.0 undersea megathrust earthquake off Japan’s northeastern coast that triggered massive tsunamis, widespread destruction, and the Fukushima Daiichi nuclear disaster.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: 1854 Ansei-Tokai earthquake
Triple: [Nankai Trough, associatedEarthquake, 1854 Ansei-Tokai earthquake]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: 1854 Ansei-Tokai earthquake
Target entity description: 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.
  • A. 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.
  • B. 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.
  • C. 1946 Nankai earthquake
    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.
  • D. Great Hanshin earthquake
    The Great Hanshin earthquake was a devastating 1995 seismic disaster in Japan that caused widespread destruction and loss of life, particularly in the city of Kobe.
  • E. 2011 Tōhoku earthquake and tsunami
    The 2011 Tōhoku earthquake and tsunami was a devastating magnitude 9.0 undersea megathrust earthquake off Japan’s northeastern coast that triggered massive tsunamis, widespread destruction, and the Fukushima Daiichi nuclear disaster.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: associatedEarthquake
Context triple: [Nankai Trough, associatedEarthquake, 1854 Ansei-Tokai earthquake]
  • A. earthquakeType
    Indicates the specific classification or category of an earthquake based on its characteristics or cause.
  • B. notableEarthquake
    Indicates that an earthquake event is significant or noteworthy due to its magnitude, impact, or historical importance.
  • C. hasEarthquakes chosen
    Indicates that the specified location or region experiences one or more earthquakes.
  • D. relatedEarthquakeZone
    Indicates that one entity is geographically or geologically associated with a particular earthquake-prone zone or seismic region.
  • E. earthquakeSequence
    Indicates a relationship where multiple earthquakes are linked as part of the same temporal or causal sequence of seismic events.
  • F. None of above.

Provenance (6 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_69ad85de1b988190a45f8dbfebc806fc completed March 8, 2026, 2:21 p.m.
NER Named-entity recognition batch_69adc3895198819090a17a8894e91d00 completed March 8, 2026, 6:44 p.m.
NED1 Entity disambiguation (via context triple) batch_69b4c38f989c8190befc64db51041a53 completed March 14, 2026, 2:10 a.m.
NEDg Description generation batch_69b4c451a5048190bfd4675cd17de655 completed March 14, 2026, 2:13 a.m.
NED2 Entity disambiguation (via description) batch_69b4c494ad80819084d6aa10fe62a63b completed March 14, 2026, 2:14 a.m.
PD Predicate disambiguation batch_69adb8445b2c8190ab07f6ad4e010d0e completed March 8, 2026, 5:56 p.m.
Created at: March 8, 2026, 3:24 p.m.