Triple

T10521476
Position Surface form Disambiguated ID Type / Status
Subject Odakyu Odawara Line E248181 entity
Predicate rollingStockUsed P5426 FINISHED
Object 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.
 E873622 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 5000 series EMU (second generation) | Statement: [Odakyu Odawara Line, rollingStockUsed, Odakyu 5000 series EMU (second generation)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Odakyu 5000 series EMU (second generation)
Context triple: [Odakyu Odawara Line, rollingStockUsed, Odakyu 5000 series EMU (second generation)]
  • A. 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.
  • B. Odakyu 3000 series EMU
    The Odakyu 3000 series EMU is a Japanese electric multiple unit train type operated by Odakyu Electric Railway for commuter services in the Tokyo area.
  • C. Tokyu 5080 series EMU
    The Tokyu 5080 series EMU is a Japanese electric multiple unit train operated by Tokyu Corporation, primarily used for commuter services in the Tokyo area with through-running onto various subway and interurban lines.
  • D. 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.
  • E. Toei 6500 series EMU
    The Toei 6500 series EMU is a modern Japanese electric multiple unit train operated by the Tokyo Metropolitan Bureau of Transportation, designed for through-services on Tokyo subway and interconnecting commuter 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: Odakyu 5000 series EMU (second generation)
Triple: [Odakyu Odawara Line, rollingStockUsed, Odakyu 5000 series EMU (second generation)]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Odakyu 5000 series EMU (second generation)
Target entity description: 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.
  • A. 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.
  • B. Odakyu 3000 series EMU
    The Odakyu 3000 series EMU is a Japanese electric multiple unit train type operated by Odakyu Electric Railway for commuter services in the Tokyo area.
  • C. Tokyu 5080 series EMU
    The Tokyu 5080 series EMU is a Japanese electric multiple unit train operated by Tokyu Corporation, primarily used for commuter services in the Tokyo area with through-running onto various subway and interurban lines.
  • D. 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.
  • E. Toei 6500 series EMU
    The Toei 6500 series EMU is a modern Japanese electric multiple unit train operated by the Tokyo Metropolitan Bureau of Transportation, designed for through-services on Tokyo subway and interconnecting commuter 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_69d381c5c7448190bec34bee7ec72bac completed April 6, 2026, 9:49 a.m.
NER Named-entity recognition batch_69d509dec25881909bc748640f26a416 completed April 7, 2026, 1:42 p.m.
NED1 Entity disambiguation (via context triple) batch_69d95e63561081909af8b2242e896bfe completed April 10, 2026, 8:32 p.m.
NEDg Description generation batch_69d95f97669881908b54ebcd1a7c6b34 completed April 10, 2026, 8:37 p.m.
NED2 Entity disambiguation (via description) batch_69d9602748608190b0c971accf44b7aa completed April 10, 2026, 8:40 p.m.
Created at: April 6, 2026, 12:29 p.m.