Triple

T3646892
Position Surface form Disambiguated ID Type / Status
Subject Nankai Trough E77321 entity
Predicate segment P889 FINISHED
Object 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.
E375878 NE FINISHED

How this triple was built (4 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 Trough, segment, Tokai segment]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Tokai segment
Context triple: [Nankai Trough, segment, Tokai segment]
  • A. Tokai
    Tokai is a suburb in Cape Town, South Africa, known for its residential areas, green spaces, and proximity to the Constantiaberg mountains.
  • B. Okayama–Hakata section
    The Okayama–Hakata section is the western stretch of Japan’s Sanyō Shinkansen high-speed rail line, linking Okayama with Hakata (Fukuoka) across the Chūgoku region.
  • C. Meitetsu
    Meitetsu is a major private railway company in Japan’s Chubu region, best known for operating extensive rail and transport services centered around Nagoya.
  • D. Toshima
    Toshima is a special ward in northwest Tokyo known for the major commercial and entertainment hub of Ikebukuro and its dense urban residential districts.
  • E. Tajima region
    The Tajima region is a northern area of Hyōgo Prefecture in Japan, known for its rural landscapes, hot springs, and the origin of the famed Tajima-gyu cattle used for Kobe beef.
  • 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: Tokai segment
Triple: [Nankai Trough, segment, Tokai segment]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Tokai segment
Target entity description: 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.
  • A. Tokai
    Tokai is a suburb in Cape Town, South Africa, known for its residential areas, green spaces, and proximity to the Constantiaberg mountains.
  • B. Okayama–Hakata section
    The Okayama–Hakata section is the western stretch of Japan’s Sanyō Shinkansen high-speed rail line, linking Okayama with Hakata (Fukuoka) across the Chūgoku region.
  • C. Meitetsu
    Meitetsu is a major private railway company in Japan’s Chubu region, best known for operating extensive rail and transport services centered around Nagoya.
  • D. Toshima
    Toshima is a special ward in northwest Tokyo known for the major commercial and entertainment hub of Ikebukuro and its dense urban residential districts.
  • E. Tajima region
    The Tajima region is a northern area of Hyōgo Prefecture in Japan, known for its rural landscapes, hot springs, and the origin of the famed Tajima-gyu cattle used for Kobe beef.
  • F. None of above. chosen

Provenance (5 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_69b44f394f9c8190881edc18b544dbb7 completed March 13, 2026, 5:54 p.m.
NEDg Description generation batch_69b45347e364819080c0dac755405462 completed March 13, 2026, 6:11 p.m.
NED2 Entity disambiguation (via description) batch_69b45f4640e881909b0e3b68cb899669 completed March 13, 2026, 7:02 p.m.
Created at: March 8, 2026, 3:24 p.m.