Triple

T14437587
Position Surface form Disambiguated ID Type / Status
Subject Tsukuba Express E358003 entity
Predicate rollingStockType P1305 FINISHED
Object TX-2000 series EMU
The TX-2000 series EMU is a Japanese electric multiple unit train used on the Tsukuba Express line, designed for high-speed, comfortable commuter service.
 E1100848 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: TX-2000 series EMU | Statement: [Tsukuba Express, rollingStockType, TX-2000 series EMU]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: TX-2000 series EMU
Context triple: [Tsukuba Express, rollingStockType, TX-2000 series EMU]
  • A. TX-1000 series EMU
    The TX-1000 series EMU is a Japanese electric multiple unit train type operated on the Tsukuba Express line, designed for high-frequency commuter services in the Tokyo metropolitan 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. JR West 223 series EMU
    The JR West 223 series EMU is a Japanese electric multiple unit train used for high-frequency suburban and rapid services in the Kansai region.
  • D. JR West 225 series EMU
    The JR West 225 series EMU is a modern Japanese electric multiple unit train designed for high-speed, high-frequency commuter and suburban services with enhanced safety and passenger comfort features.
  • E. 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.
  • 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: TX-2000 series EMU
Triple: [Tsukuba Express, rollingStockType, TX-2000 series EMU]
Generated description
The TX-2000 series EMU is a Japanese electric multiple unit train used on the Tsukuba Express line, designed for high-speed, comfortable commuter service.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: TX-2000 series EMU
Target entity description: The TX-2000 series EMU is a Japanese electric multiple unit train used on the Tsukuba Express line, designed for high-speed, comfortable commuter service.
  • A. TX-1000 series EMU
    The TX-1000 series EMU is a Japanese electric multiple unit train type operated on the Tsukuba Express line, designed for high-frequency commuter services in the Tokyo metropolitan 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. JR West 223 series EMU
    The JR West 223 series EMU is a Japanese electric multiple unit train used for high-frequency suburban and rapid services in the Kansai region.
  • D. JR West 225 series EMU
    The JR West 225 series EMU is a modern Japanese electric multiple unit train designed for high-speed, high-frequency commuter and suburban services with enhanced safety and passenger comfort features.
  • E. 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.
  • 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_69d8279402a88190821ffa39ae15bccf completed April 9, 2026, 10:26 p.m.
NER Named-entity recognition batch_69de914a45ec81909ab8ccf302047d7f completed April 14, 2026, 7:11 p.m.
NED1 Entity disambiguation (via context triple) batch_69fd648b8f348190be11645b371b4102 completed May 8, 2026, 4:20 a.m.
NEDg Description generation batch_69fd66952aa08190b10ef03dd85413ae completed May 8, 2026, 4:29 a.m.
NED2 Entity disambiguation (via description) batch_69fd66f535288190a05acc74844bdbc9 completed May 8, 2026, 4:30 a.m.
Created at: April 10, 2026, 1:18 a.m.