Triple

T16806596
Position Surface form Disambiguated ID Type / Status
Subject Toyota Corona E408496 entity
Predicate emissionsControl P17326 FINISHED
Object Toyota TTC-C/TTC-V systems (Japan, 1970s)
Toyota TTC-C/TTC-V systems (Japan, 1970s) were early catalytic and lean-burn emission control technologies developed by Toyota to meet increasingly strict Japanese exhaust regulations while maintaining fuel efficiency and performance.
 E1234561 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: Toyota TTC-C/TTC-V systems (Japan, 1970s) | Statement: [Toyota Corona, emissionsControl, Toyota TTC-C/TTC-V systems (Japan, 1970s)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Toyota TTC-C/TTC-V systems (Japan, 1970s)
Context triple: [Toyota Corona, emissionsControl, Toyota TTC-C/TTC-V systems (Japan, 1970s)]
  • A. Tokyo Metro CS-ATC
    Tokyo Metro CS-ATC is a cab signaling-based automatic train control system used on Tokyo Metro and interconnected lines to ensure safe train operation through continuous speed supervision and automatic braking.
  • B. Hitachi Monorail
    Hitachi Monorail is a Japanese monorail system developed by Hitachi, Ltd., widely used in urban transit lines in Japan and abroad for its reliable, straddle-beam design.
  • C. Tokyo Metro 9000 series EMU
    The Tokyo Metro 9000 series EMU is a Japanese electric multiple unit train type used for commuter services on Tokyo Metro’s Namboku Line and through-services onto lines such as the Tokyu Meguro Line.
  • D. Tokyo Metro 9000 series
    The Tokyo Metro 9000 series is a fleet of electric multiple unit trains operated by Tokyo Metro, primarily known for serving the Namboku Line with modern, air-conditioned commuter services.
  • E. Tokyo Metro 17000 series
    The Tokyo Metro 17000 series is a modern electric multiple unit train operated by Tokyo Metro, designed for through-services on lines such as the Fukutoshin and Yurakucho Lines with improved energy efficiency and passenger comfort.
  • 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: Toyota TTC-C/TTC-V systems (Japan, 1970s)
Triple: [Toyota Corona, emissionsControl, Toyota TTC-C/TTC-V systems (Japan, 1970s)]
Generated description
Toyota TTC-C/TTC-V systems (Japan, 1970s) were early catalytic and lean-burn emission control technologies developed by Toyota to meet increasingly strict Japanese exhaust regulations while maintaining fuel efficiency and performance.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Toyota TTC-C/TTC-V systems (Japan, 1970s)
Target entity description: Toyota TTC-C/TTC-V systems (Japan, 1970s) were early catalytic and lean-burn emission control technologies developed by Toyota to meet increasingly strict Japanese exhaust regulations while maintaining fuel efficiency and performance.
  • A. Tokyo Metro CS-ATC
    Tokyo Metro CS-ATC is a cab signaling-based automatic train control system used on Tokyo Metro and interconnected lines to ensure safe train operation through continuous speed supervision and automatic braking.
  • B. Hitachi Monorail
    Hitachi Monorail is a Japanese monorail system developed by Hitachi, Ltd., widely used in urban transit lines in Japan and abroad for its reliable, straddle-beam design.
  • C. Tokyo Metro 9000 series EMU
    The Tokyo Metro 9000 series EMU is a Japanese electric multiple unit train type used for commuter services on Tokyo Metro’s Namboku Line and through-services onto lines such as the Tokyu Meguro Line.
  • D. Tokyo Metro 9000 series
    The Tokyo Metro 9000 series is a fleet of electric multiple unit trains operated by Tokyo Metro, primarily known for serving the Namboku Line with modern, air-conditioned commuter services.
  • E. Tokyo Metro 17000 series
    The Tokyo Metro 17000 series is a modern electric multiple unit train operated by Tokyo Metro, designed for through-services on lines such as the Fukutoshin and Yurakucho Lines with improved energy efficiency and passenger comfort.
  • 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_69d88393905081908d00a86b99996ac8 completed April 10, 2026, 4:58 a.m.
NER Named-entity recognition batch_69e3b2cd1e8c8190a7a05ba255f711c7 completed April 18, 2026, 4:35 p.m.
NED1 Entity disambiguation (via context triple) batch_6a00b28f125481909664363904f4c031 completed May 10, 2026, 4:30 p.m.
NEDg Description generation batch_6a00b399786c8190acbd188ab55b1fa0 completed May 10, 2026, 4:34 p.m.
NED2 Entity disambiguation (via description) batch_6a00b46ab0608190bc59abb99842e6d4 completed May 10, 2026, 4:38 p.m.
Created at: April 10, 2026, 5:22 a.m.