Triple

T7605664
Position Surface form Disambiguated ID Type / Status
Subject Jōetsu Shinkansen E180096 entity
Predicate usesRollingStock P5426 FINISHED
Object 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.
 E676341 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: E2 series Shinkansen | Statement: [Jōetsu Shinkansen, usesRollingStock, E2 series Shinkansen]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: E2 series Shinkansen
Context triple: [Jōetsu Shinkansen, usesRollingStock, E2 series Shinkansen]
  • A. 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.
  • B. 700 series Shinkansen
    The 700 series Shinkansen is a Japanese high-speed train type introduced in the late 1990s, known for its distinctive "duck-bill" nose design and service on major Shinkansen lines.
  • C. Series E7 Shinkansen
    The Series E7 Shinkansen is a Japanese high-speed train type operated by JR East, known for its advanced safety features, comfort-focused interior, and service on routes such as the Hokuriku Shinkansen.
  • D. 500 series Shinkansen
    The 500 series Shinkansen is a high-speed Japanese bullet train class known for its distinctive aerodynamic design and former use on premier Nozomi services.
  • E. E231 series EMU
    The E231 series EMU is a widely used Japanese commuter train type operated by JR East, known for its high-capacity, rapid-transit service in the Greater Tokyo area.
  • 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: E2 series Shinkansen
Triple: [Jōetsu Shinkansen, usesRollingStock, E2 series Shinkansen]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: E2 series Shinkansen
Target entity description: 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.
  • A. 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.
  • B. 700 series Shinkansen
    The 700 series Shinkansen is a Japanese high-speed train type introduced in the late 1990s, known for its distinctive "duck-bill" nose design and service on major Shinkansen lines.
  • C. Series E7 Shinkansen
    The Series E7 Shinkansen is a Japanese high-speed train type operated by JR East, known for its advanced safety features, comfort-focused interior, and service on routes such as the Hokuriku Shinkansen.
  • D. 500 series Shinkansen
    The 500 series Shinkansen is a high-speed Japanese bullet train class known for its distinctive aerodynamic design and former use on premier Nozomi services.
  • E. E231 series EMU
    The E231 series EMU is a widely used Japanese commuter train type operated by JR East, known for its high-capacity, rapid-transit service in the Greater Tokyo area.
  • 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_69c69f3567008190ab01d2ca7b53584a completed March 27, 2026, 3:16 p.m.
NER Named-entity recognition batch_69c6f9fcfcfc8190a29a0b5cd3e8927a completed March 27, 2026, 9:43 p.m.
NED1 Entity disambiguation (via context triple) batch_69c86853e1fc8190b16cdf779057c804 completed March 28, 2026, 11:46 p.m.
NEDg Description generation batch_69c868fb7fe48190a1b7ab0e824e2984 completed March 28, 2026, 11:49 p.m.
NED2 Entity disambiguation (via description) batch_69c8697782d48190a6830f91800d3505 completed March 28, 2026, 11:51 p.m.
Created at: March 27, 2026, 3:54 p.m.