Triple

T2868501
Position Surface form Disambiguated ID Type / Status
Subject Central Japan Railway Company E63498 entity
Predicate notableProject P4 FINISHED
Object Chuo Shinkansen (maglev) planning and construction
Chuo Shinkansen (maglev) planning and construction is Japan’s next-generation high-speed magnetic levitation rail project intended to link Tokyo, Nagoya, and Osaka with ultra-fast, low-vibration train service largely via deep underground tunnels.
 E306035 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: Chuo Shinkansen (maglev) planning and construction | Statement: [Central Japan Railway Company, notableProject, Chuo Shinkansen (maglev) planning and construction]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chuo Shinkansen (maglev) planning and construction
Context triple: [Central Japan Railway Company, notableProject, Chuo Shinkansen (maglev) planning and construction]
  • A. Shanghai Maglev Train
    The Shanghai Maglev Train is a high-speed magnetic levitation railway in Shanghai, China, renowned as one of the fastest commercial train services in the world.
  • B. JR West Shinkansen
    JR West Shinkansen is the high-speed bullet train service operated by West Japan Railway Company, connecting major cities across western Japan.
  • C. Sanyo Shinkansen
    Sanyo Shinkansen is a high-speed railway line in Japan that connects Osaka with western Honshu cities such as Hiroshima and Fukuoka as part of the Shinkansen network.
  • D. Tokaido Shinkansen
    The Tokaido Shinkansen is Japan’s pioneering high-speed rail line connecting Tokyo with Osaka and other major cities, renowned for its speed, punctuality, and heavy passenger usage.
  • E. Shinkansen high-speed rail network
    The Shinkansen high-speed rail network is Japan’s renowned bullet train system, known for its fast, frequent, and punctual intercity rail services connecting major cities across the country.
  • 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: Chuo Shinkansen (maglev) planning and construction
Triple: [Central Japan Railway Company, notableProject, Chuo Shinkansen (maglev) planning and construction]
Generated description
Chuo Shinkansen (maglev) planning and construction is Japan’s next-generation high-speed magnetic levitation rail project intended to link Tokyo, Nagoya, and Osaka with ultra-fast, low-vibration train service largely via deep underground tunnels.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Chuo Shinkansen (maglev) planning and construction
Target entity description: Chuo Shinkansen (maglev) planning and construction is Japan’s next-generation high-speed magnetic levitation rail project intended to link Tokyo, Nagoya, and Osaka with ultra-fast, low-vibration train service largely via deep underground tunnels.
  • A. Shanghai Maglev Train
    The Shanghai Maglev Train is a high-speed magnetic levitation railway in Shanghai, China, renowned as one of the fastest commercial train services in the world.
  • B. JR West Shinkansen
    JR West Shinkansen is the high-speed bullet train service operated by West Japan Railway Company, connecting major cities across western Japan.
  • C. Sanyo Shinkansen
    Sanyo Shinkansen is a high-speed railway line in Japan that connects Osaka with western Honshu cities such as Hiroshima and Fukuoka as part of the Shinkansen network.
  • D. Tokaido Shinkansen
    The Tokaido Shinkansen is Japan’s pioneering high-speed rail line connecting Tokyo with Osaka and other major cities, renowned for its speed, punctuality, and heavy passenger usage.
  • E. Shinkansen high-speed rail network
    The Shinkansen high-speed rail network is Japan’s renowned bullet train system, known for its fast, frequent, and punctual intercity rail services connecting major cities across the country.
  • 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_69ab4c42fb8c8190b36e161d47c03b81 completed March 6, 2026, 9:50 p.m.
NER Named-entity recognition batch_69abdfdfef1881909dc52a1b34cd24e3 completed March 7, 2026, 8:20 a.m.
NED1 Entity disambiguation (via context triple) batch_69b01dabb19c8190822ac992ab764446 completed March 10, 2026, 1:33 p.m.
NEDg Description generation batch_69b01e34639c8190b1c6e8a14cd31d96 completed March 10, 2026, 1:35 p.m.
NED2 Entity disambiguation (via description) batch_69b01f5a6784819089499926fb115d9c completed March 10, 2026, 1:40 p.m.
Created at: March 6, 2026, 10:02 p.m.