Triple

T14004212
Position Surface form Disambiguated ID Type / Status
Subject Nakamozu Depot E336904 entity
Predicate usedBy P260 FINISHED
Object Osaka Metro 31 series trains
The Osaka Metro 31 series trains are a modern fleet of electric multiple units operating on the Osaka Metro system in Japan, designed for efficient urban commuter service with updated technology and passenger amenities.
 E1078794 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: Osaka Metro 31 series trains | Statement: [Nakamozu Depot, usedBy, Osaka Metro 31 series trains]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Osaka Metro 31 series trains
Context triple: [Nakamozu Depot, usedBy, Osaka Metro 31 series trains]
  • A. Osaka Metro 30 series trains
    The Osaka Metro 30 series trains are electric multiple units operating on Osaka’s subway network, known for their stainless-steel bodies and use on busy urban lines such as the Tanimachi Line.
  • B. Osaka Metro 22 series trains
    The Osaka Metro 22 series trains are electric multiple units operating on Osaka’s subway network, designed for efficient, high-capacity urban passenger service.
  • C. Osaka Metro 30000 series
    The Osaka Metro 30000 series is a modern electric multiple unit train type operated by Osaka Metro, featuring air conditioning, energy-efficient systems, and improved passenger comfort for urban subway services.
  • D. Osaka Metro 23 series
    The Osaka Metro 23 series is a type of electric multiple unit train operated on Osaka’s subway network, specifically serving the Yotsubashi Line.
  • E. Osaka Metro 25 series
    The Osaka Metro 25 series is a type of electric multiple unit train used for passenger services on Osaka’s subway network.
  • 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: Osaka Metro 31 series trains
Triple: [Nakamozu Depot, usedBy, Osaka Metro 31 series trains]
Generated description
The Osaka Metro 31 series trains are a modern fleet of electric multiple units operating on the Osaka Metro system in Japan, designed for efficient urban commuter service with updated technology and passenger amenities.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Osaka Metro 31 series trains
Target entity description: The Osaka Metro 31 series trains are a modern fleet of electric multiple units operating on the Osaka Metro system in Japan, designed for efficient urban commuter service with updated technology and passenger amenities.
  • A. Osaka Metro 30 series trains
    The Osaka Metro 30 series trains are electric multiple units operating on Osaka’s subway network, known for their stainless-steel bodies and use on busy urban lines such as the Tanimachi Line.
  • B. Osaka Metro 22 series trains
    The Osaka Metro 22 series trains are electric multiple units operating on Osaka’s subway network, designed for efficient, high-capacity urban passenger service.
  • C. Osaka Metro 30000 series
    The Osaka Metro 30000 series is a modern electric multiple unit train type operated by Osaka Metro, featuring air conditioning, energy-efficient systems, and improved passenger comfort for urban subway services.
  • D. Osaka Metro 23 series
    The Osaka Metro 23 series is a type of electric multiple unit train operated on Osaka’s subway network, specifically serving the Yotsubashi Line.
  • E. Osaka Metro 25 series
    The Osaka Metro 25 series is a type of electric multiple unit train used for passenger services on Osaka’s subway network.
  • 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_69d81c645c5c8190b1fd16a285a1b78a completed April 9, 2026, 9:38 p.m.
NER Named-entity recognition batch_69de2ed1d2548190bb46d6b7cba4ffde completed April 14, 2026, 12:10 p.m.
NED1 Entity disambiguation (via context triple) batch_69fcb652305c81908ea097d4f36a05c0 completed May 7, 2026, 3:57 p.m.
NEDg Description generation batch_69fcc76f99808190945fd3621fc183ff completed May 7, 2026, 5:10 p.m.
NED2 Entity disambiguation (via description) batch_69fcc807cdc48190a3b9dd940d17dc83 completed May 7, 2026, 5:12 p.m.
Created at: April 9, 2026, 10:19 p.m.