Triple

T22904491
Position Surface form Disambiguated ID Type / Status
Subject Limited Express Romancecar E568407 entity
Predicate rollingStockSeries P45556 FINISHED
Object Odakyu 50000 series VSE
The Odakyu 50000 series VSE is a distinctive tilting electric multiple unit train operated by Odakyu Electric Railway in Japan, known for its futuristic design and use on premium Romancecar limited express services.
 E1561958 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: Odakyu 50000 series VSE | Statement: [Limited Express Romancecar, rollingStockSeries, Odakyu 50000 series VSE]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Odakyu 50000 series VSE
Context triple: [Limited Express Romancecar, rollingStockSeries, Odakyu 50000 series VSE]
  • A. Odakyu 60000 series MSE
    The Odakyu 60000 series MSE is a Japanese limited express electric multiple unit train operated by Odakyu Electric Railway, known for its premium "Romancecar" services.
  • B. Odakyu 5000 series EMU (second generation)
    The Odakyu 5000 series EMU (second generation) is a modern Japanese commuter electric multiple unit operated by Odakyu Electric Railway, designed for high-capacity, comfortable suburban services around the Tokyo area.
  • C. Odakyu 4000 series
    The Odakyu 4000 series is a Japanese electric multiple unit commuter train type operated by Odakyu Electric Railway, designed for through-services with Tokyo Metro and known for its modern, energy-efficient features.
  • D. Odakyu 70000 series GSE
    The Odakyu 70000 series GSE is a premium limited express electric multiple unit train operated by Odakyu Electric Railway in Japan, known for its panoramic observation decks and use on Romancecar services.
  • E. Odakyu 1000 series EMU
    The Odakyu 1000 series EMU is a Japanese electric multiple unit train type operated by Odakyu Electric Railway for commuter services in the 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: Odakyu 50000 series VSE
Triple: [Limited Express Romancecar, rollingStockSeries, Odakyu 50000 series VSE]
Generated description
The Odakyu 50000 series VSE is a distinctive tilting electric multiple unit train operated by Odakyu Electric Railway in Japan, known for its futuristic design and use on premium Romancecar limited express services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Odakyu 50000 series VSE
Target entity description: The Odakyu 50000 series VSE is a distinctive tilting electric multiple unit train operated by Odakyu Electric Railway in Japan, known for its futuristic design and use on premium Romancecar limited express services.
  • A. Odakyu 60000 series MSE
    The Odakyu 60000 series MSE is a Japanese limited express electric multiple unit train operated by Odakyu Electric Railway, known for its premium "Romancecar" services.
  • B. Odakyu 5000 series EMU (second generation)
    The Odakyu 5000 series EMU (second generation) is a modern Japanese commuter electric multiple unit operated by Odakyu Electric Railway, designed for high-capacity, comfortable suburban services around the Tokyo area.
  • C. Odakyu 4000 series
    The Odakyu 4000 series is a Japanese electric multiple unit commuter train type operated by Odakyu Electric Railway, designed for through-services with Tokyo Metro and known for its modern, energy-efficient features.
  • D. Odakyu 70000 series GSE
    The Odakyu 70000 series GSE is a premium limited express electric multiple unit train operated by Odakyu Electric Railway in Japan, known for its panoramic observation decks and use on Romancecar services.
  • E. Odakyu 1000 series EMU
    The Odakyu 1000 series EMU is a Japanese electric multiple unit train type operated by Odakyu Electric Railway for commuter services in the 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_69e2458cd9e48190943ad2e34485d939 completed April 17, 2026, 2:37 p.m.
NER Named-entity recognition batch_69f1801895f48190bb8d49a41feac7ef completed April 29, 2026, 3:50 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0bc23e15488190b2f72bd372099431 completed May 19, 2026, 1:51 a.m.
NEDg Description generation batch_6a0bc39947e88190bfa435432609e994 completed May 19, 2026, 1:57 a.m.
NED2 Entity disambiguation (via description) batch_6a0bc43eafe081909dfff8b40d624635 completed May 19, 2026, 2 a.m.
Created at: April 17, 2026, 3:41 p.m.