Triple

T13037678
Position Surface form Disambiguated ID Type / Status
Subject Sanyō Shinkansen E326605 entity
Predicate openedSection P28341 FINISHED
Object Okayama–Hiroshima section
The Okayama–Hiroshima section is a major high-speed rail segment of Japan’s Sanyō Shinkansen line, linking the Chūgoku region’s key cities and facilitating rapid intercity travel in western Honshu.
E1020700 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: Okayama–Hiroshima section | Statement: [Sanyō Shinkansen, openedSection, Okayama–Hiroshima section]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Okayama–Hiroshima section
Context triple: [Sanyō Shinkansen, openedSection, Okayama–Hiroshima section]
  • A. 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.
  • B. Shin-Osaka–Okayama section
    The Shin-Osaka–Okayama section is the western portion of Japan’s high-speed Sanyō Shinkansen line that connects Osaka with Okayama and serves as a key corridor toward Hiroshima and Kyushu.
  • C. Tokyo–Okayama
    Tokyo–Okayama is a major Shinkansen corridor in Japan connecting the Tokyo metropolitan area with the Chūgoku region via high-speed rail.
  • D. Nagoya–Osaka section
    The Nagoya–Osaka section is the planned western extension of Japan’s Chuo Shinkansen maglev line, intended to connect Nagoya with Osaka as part of a high-speed intercity corridor.
  • E. Akita–Aomori section
    The Akita–Aomori section is the northern stretch of Japan’s Ōu Main Line that connects Akita Prefecture with Aomori Prefecture in the Tōhoku region.
  • 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: Okayama–Hiroshima section
Triple: [Sanyō Shinkansen, openedSection, Okayama–Hiroshima section]
Generated description
The Okayama–Hiroshima section is a major high-speed rail segment of Japan’s Sanyō Shinkansen line, linking the Chūgoku region’s key cities and facilitating rapid intercity travel in western Honshu.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Okayama–Hiroshima section
Target entity description: The Okayama–Hiroshima section is a major high-speed rail segment of Japan’s Sanyō Shinkansen line, linking the Chūgoku region’s key cities and facilitating rapid intercity travel in western Honshu.
  • A. 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.
  • B. Shin-Osaka–Okayama section
    The Shin-Osaka–Okayama section is the western portion of Japan’s high-speed Sanyō Shinkansen line that connects Osaka with Okayama and serves as a key corridor toward Hiroshima and Kyushu.
  • C. Tokyo–Okayama
    Tokyo–Okayama is a major Shinkansen corridor in Japan connecting the Tokyo metropolitan area with the Chūgoku region via high-speed rail.
  • D. Nagoya–Osaka section
    The Nagoya–Osaka section is the planned western extension of Japan’s Chuo Shinkansen maglev line, intended to connect Nagoya with Osaka as part of a high-speed intercity corridor.
  • E. Akita–Aomori section
    The Akita–Aomori section is the northern stretch of Japan’s Ōu Main Line that connects Akita Prefecture with Aomori Prefecture in the Tōhoku region.
  • 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_69d8076cc45c81908123123f43e69266 completed April 9, 2026, 8:09 p.m.
NER Named-entity recognition batch_69d9804b743c8190810dc5c14bc6d912 completed April 10, 2026, 10:57 p.m.
NED1 Entity disambiguation (via context triple) batch_69f6d5fbaea8819080ca249159d6c125 completed May 3, 2026, 4:58 a.m.
NEDg Description generation batch_69f6d943a80c81909bc39b9a9ef303bd completed May 3, 2026, 5:12 a.m.
NED2 Entity disambiguation (via description) batch_69f6da1e56388190b536831b2c6d493f completed May 3, 2026, 5:16 a.m.
Created at: April 9, 2026, 8:55 p.m.