Triple

T13375441
Position Surface form Disambiguated ID Type / Status
Subject Yamatoji Rapid Service E319169 entity
Predicate rollingStock P1305 FINISHED
Object 225 series EMU
The 225 series EMU is a modern Japanese electric multiple unit train operated by JR West, designed for commuter and suburban services with enhanced safety and comfort features.
 E1050671 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: 225 series EMU | Statement: [Yamatoji Rapid Service, rollingStock, 225 series EMU]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: 225 series EMU
Context triple: [Yamatoji Rapid Service, rollingStock, 225 series EMU]
  • A. 205 series EMU
    The 205 series EMU is a Japanese commuter electric multiple unit train type introduced by Japanese National Railways and widely used on busy urban and suburban lines, particularly around the Tokyo area.
  • B. 221 series EMU
    The 221 series EMU is a Japanese suburban electric multiple unit train operated by JR West, known for its use on commuter and rapid services in the Kansai region.
  • C. 207 series EMU
    The 207 series EMU is a Japanese electric multiple unit commuter train type operated primarily in the Kansai region by JR West.
  • D. E259 series EMU
    The E259 series EMU is a Japanese electric multiple unit train operated by JR East, primarily used for limited express airport services such as the Narita Express.
  • E. 287 series EMU
    The 287 series EMU is a Japanese electric multiple unit train operated by JR West, primarily used for limited express services in the Kansai 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: 225 series EMU
Triple: [Yamatoji Rapid Service, rollingStock, 225 series EMU]
Generated description
The 225 series EMU is a modern Japanese electric multiple unit train operated by JR West, designed for commuter and suburban services with enhanced safety and comfort features.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: 225 series EMU
Target entity description: The 225 series EMU is a modern Japanese electric multiple unit train operated by JR West, designed for commuter and suburban services with enhanced safety and comfort features.
  • A. 205 series EMU
    The 205 series EMU is a Japanese commuter electric multiple unit train type introduced by Japanese National Railways and widely used on busy urban and suburban lines, particularly around the Tokyo area.
  • B. 221 series EMU
    The 221 series EMU is a Japanese suburban electric multiple unit train operated by JR West, known for its use on commuter and rapid services in the Kansai region.
  • C. 207 series EMU
    The 207 series EMU is a Japanese electric multiple unit commuter train type operated primarily in the Kansai region by JR West.
  • D. E259 series EMU
    The E259 series EMU is a Japanese electric multiple unit train operated by JR East, primarily used for limited express airport services such as the Narita Express.
  • E. 287 series EMU
    The 287 series EMU is a Japanese electric multiple unit train operated by JR West, primarily used for limited express services in the Kansai 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_69d806b886bc8190b676e7768b8e01c5 completed April 9, 2026, 8:06 p.m.
NER Named-entity recognition batch_69dadce3fec48190a5443d87c85477a3 completed April 11, 2026, 11:44 p.m.
NED1 Entity disambiguation (via context triple) batch_69f77f7a13508190bbab6eb68fb52a18 completed May 3, 2026, 5:01 p.m.
NEDg Description generation batch_69f78058d4c88190be75e0a38cdc20da completed May 3, 2026, 5:05 p.m.
NED2 Entity disambiguation (via description) batch_69f7815a858c8190a9ae47012d04f8e1 completed May 3, 2026, 5:09 p.m.
Created at: April 9, 2026, 9:33 p.m.