Triple

T8185639
Position Surface form Disambiguated ID Type / Status
Subject Yamagata Shinkansen E191174 entity
Predicate usesRollingStock P5426 FINISHED
Object E8 series Shinkansen
The E8 series Shinkansen is a high-speed Japanese train type operated by JR East, designed for mini-shinkansen services with improved comfort, energy efficiency, and performance.
 E717972 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: E8 series Shinkansen | Statement: [Yamagata Shinkansen, usesRollingStock, E8 series Shinkansen]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: E8 series Shinkansen
Context triple: [Yamagata Shinkansen, usesRollingStock, E8 series Shinkansen]
  • A. E4 series Shinkansen
    The E4 series Shinkansen is a Japanese double-decker high-speed train type designed to carry large numbers of passengers on busy Shinkansen routes.
  • B. E2 series Shinkansen
    The E2 series Shinkansen is a Japanese high-speed electric multiple unit train type operated by JR East, known for serving routes such as the Tōhoku and Jōetsu Shinkansen lines.
  • C. E3 series Shinkansen
    The E3 series Shinkansen is a Japanese high-speed train type operated by JR East, known for its compact, narrow-body design used on mini-shinkansen lines such as the Yamagata and Akita Shinkansen.
  • D. N700 series Shinkansen
    The N700 series Shinkansen is a high-speed Japanese bullet train known for its tilting technology, energy efficiency, and operation on major routes such as the Tokaido and Sanyo Shinkansen lines.
  • E. 800 series Shinkansen
    The 800 series Shinkansen is a Japanese high-speed train type operated by JR Kyushu, known for its distinctive design and use on Kyushu’s Shinkansen lines.
  • 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: E8 series Shinkansen
Triple: [Yamagata Shinkansen, usesRollingStock, E8 series Shinkansen]
Generated description
The E8 series Shinkansen is a high-speed Japanese train type operated by JR East, designed for mini-shinkansen services with improved comfort, energy efficiency, and performance.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: E8 series Shinkansen
Target entity description: The E8 series Shinkansen is a high-speed Japanese train type operated by JR East, designed for mini-shinkansen services with improved comfort, energy efficiency, and performance.
  • A. E4 series Shinkansen
    The E4 series Shinkansen is a Japanese double-decker high-speed train type designed to carry large numbers of passengers on busy Shinkansen routes.
  • B. E2 series Shinkansen
    The E2 series Shinkansen is a Japanese high-speed electric multiple unit train type operated by JR East, known for serving routes such as the Tōhoku and Jōetsu Shinkansen lines.
  • C. E3 series Shinkansen
    The E3 series Shinkansen is a Japanese high-speed train type operated by JR East, known for its compact, narrow-body design used on mini-shinkansen lines such as the Yamagata and Akita Shinkansen.
  • D. N700 series Shinkansen
    The N700 series Shinkansen is a high-speed Japanese bullet train known for its tilting technology, energy efficiency, and operation on major routes such as the Tokaido and Sanyo Shinkansen lines.
  • E. 800 series Shinkansen
    The 800 series Shinkansen is a Japanese high-speed train type operated by JR Kyushu, known for its distinctive design and use on Kyushu’s Shinkansen lines.
  • 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_69ca82c5b6948190a583c096fb0a6c71 completed March 30, 2026, 2:03 p.m.
NER Named-entity recognition batch_69cb4c52407c8190bd366fce6d4e02cd completed March 31, 2026, 4:23 a.m.
NED1 Entity disambiguation (via context triple) batch_69cced7a109c819092d43d9e3cfc0706 completed April 1, 2026, 10:03 a.m.
NEDg Description generation batch_69ccf09b827881908e7fd7e9ff251674 completed April 1, 2026, 10:16 a.m.
NED2 Entity disambiguation (via description) batch_69cd0579b6d08190a5c68d730e1c6284 completed April 1, 2026, 11:46 a.m.
Created at: March 30, 2026, 5:41 p.m.