Triple

T1516809
Position Surface form Disambiguated ID Type / Status
Subject Nankai Electric Railway E32139 entity
Predicate operatesLine P15252 FINISHED
Object Kada Line
The Kada Line is a regional railway line in Wakayama Prefecture, Japan, providing local passenger service between Wakayamashi and Kada along the coast.
 E214135 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: Kada Line | Statement: [Nankai Electric Railway, operatesLine, Kada Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Kada Line
Context triple: [Nankai Electric Railway, operatesLine, Kada Line]
  • A. Yamatoji Line
    The Yamatoji Line is a railway line in Japan operated by JR West that connects Osaka with Nara, serving as a key commuter and intercity route in the Kansai region.
  • B. Sakaisuji Line
    The Sakaisuji Line is a rapid transit line in Osaka, Japan, forming part of the Osaka Metro network and connecting key districts through north–south underground service.
  • C. Imazatosuji Line
    The Imazatosuji Line is a rapid transit line in Osaka, Japan, operated by Osaka Metro and serving as one of the city’s main north–south subway corridors.
  • D. Minatomirai Line
    The Minatomirai Line is a private railway line in Yokohama, Japan, connecting central Yokohama with the Minato Mirai 21 waterfront district and offering through services with multiple Tokyo subway and suburban lines.
  • E. Sennichimae Line
    The Sennichimae Line is a rapid transit line in Osaka, Japan, forming part of the city’s urban 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: Kada Line
Triple: [Nankai Electric Railway, operatesLine, Kada Line]
Generated description
The Kada Line is a regional railway line in Wakayama Prefecture, Japan, providing local passenger service between Wakayamashi and Kada along the coast.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Kada Line
Target entity description: The Kada Line is a regional railway line in Wakayama Prefecture, Japan, providing local passenger service between Wakayamashi and Kada along the coast.
  • A. Yamatoji Line
    The Yamatoji Line is a railway line in Japan operated by JR West that connects Osaka with Nara, serving as a key commuter and intercity route in the Kansai region.
  • B. Sakaisuji Line
    The Sakaisuji Line is a rapid transit line in Osaka, Japan, forming part of the Osaka Metro network and connecting key districts through north–south underground service.
  • C. Imazatosuji Line
    The Imazatosuji Line is a rapid transit line in Osaka, Japan, operated by Osaka Metro and serving as one of the city’s main north–south subway corridors.
  • D. Minatomirai Line
    The Minatomirai Line is a private railway line in Yokohama, Japan, connecting central Yokohama with the Minato Mirai 21 waterfront district and offering through services with multiple Tokyo subway and suburban lines.
  • E. Sennichimae Line
    The Sennichimae Line is a rapid transit line in Osaka, Japan, forming part of the city’s urban 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_69a885e8caf88190a5fbb6159ce87786 completed March 4, 2026, 7:20 p.m.
NER Named-entity recognition batch_69aa61f688148190bcc7c14372ce5bd1 completed March 6, 2026, 5:11 a.m.
NED1 Entity disambiguation (via context triple) batch_69adeabea0d88190b0bd83aece8c7b55 completed March 8, 2026, 9:31 p.m.
NEDg Description generation batch_69adeea29fd4819099e1ac22b9ce123f completed March 8, 2026, 9:48 p.m.
NED2 Entity disambiguation (via description) batch_69adef4913608190824764bd79821a7e completed March 8, 2026, 9:51 p.m.
Created at: March 4, 2026, 7:26 p.m.