Triple

T6433534
Position Surface form Disambiguated ID Type / Status
Subject Iizuka, Fukuoka, Japan E129834 entity
Predicate servedByRailwayLine P848 FINISHED
Object Chikuho Main Line
The Chikuho Main Line is a regional railway line in Fukuoka Prefecture, Japan, operated by JR Kyushu and known for connecting former coal-mining areas such as Iizuka with larger urban centers.
E849324 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: Chikuho Main Line | Statement: [Iizuka, Fukuoka, Japan, servedByRailwayLine, Chikuho Main Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Chikuho Main Line
Context triple: [Iizuka, Fukuoka, Japan, servedByRailwayLine, Chikuho Main Line]
  • A. Kisei Main Line
    The Kisei Main Line is a major railway line in Japan that runs along the Kii Peninsula, connecting cities in Osaka, Wakayama, and Mie Prefectures along the Pacific coast.
  • B. Sōya Main Line
    The Sōya Main Line is a railway line in Hokkaido, Japan, operated by JR Hokkaido that runs through the northernmost regions of the island, including the city of Wakkanai.
  • C. Sanyo Main Line
    The Sanyo Main Line is a major railway corridor in western Japan connecting the Kansai and Chugoku regions along the Seto Inland Sea coast.
  • D. Sanin Main Line
    The Sanin Main Line is a major railway route in western Japan running along the Sea of Japan coast through the San'in region, connecting cities such as Kyoto, Tottori, and Shimonoseki.
  • E. Kosei Line
    The Kosei Line is a railway line in Japan operated by JR West that runs along the western shore of Lake Biwa, connecting Kyoto with the Shiga and Fukui prefecture areas.
  • 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: Chikuho Main Line
Triple: [Iizuka, Fukuoka, Japan, servedByRailwayLine, Chikuho Main Line]
Generated description
The Chikuho Main Line is a regional railway line in Fukuoka Prefecture, Japan, operated by JR Kyushu and known for connecting former coal-mining areas such as Iizuka with larger urban centers.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Chikuho Main Line
Target entity description: The Chikuho Main Line is a regional railway line in Fukuoka Prefecture, Japan, operated by JR Kyushu and known for connecting former coal-mining areas such as Iizuka with larger urban centers.
  • A. Kisei Main Line
    The Kisei Main Line is a major railway line in Japan that runs along the Kii Peninsula, connecting cities in Osaka, Wakayama, and Mie Prefectures along the Pacific coast.
  • B. Sōya Main Line
    The Sōya Main Line is a railway line in Hokkaido, Japan, operated by JR Hokkaido that runs through the northernmost regions of the island, including the city of Wakkanai.
  • C. Sanyo Main Line
    The Sanyo Main Line is a major railway corridor in western Japan connecting the Kansai and Chugoku regions along the Seto Inland Sea coast.
  • D. Sanin Main Line
    The Sanin Main Line is a major railway route in western Japan running along the Sea of Japan coast through the San'in region, connecting cities such as Kyoto, Tottori, and Shimonoseki.
  • E. Kosei Line
    The Kosei Line is a railway line in Japan operated by JR West that runs along the western shore of Lake Biwa, connecting Kyoto with the Shiga and Fukui prefecture areas.
  • 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_69c0084caac48190a7bc2ad8ba44536f completed March 22, 2026, 3:18 p.m.
NER Named-entity recognition batch_69c0693f73ec8190883470b57f8141aa completed March 22, 2026, 10:12 p.m.
NED1 Entity disambiguation (via context triple) batch_69d636f0386481909a4957d57b2493ff completed April 8, 2026, 11:07 a.m.
NEDg Description generation batch_69d63780a1b08190be5c05750ab46f04 completed April 8, 2026, 11:09 a.m.
NED2 Entity disambiguation (via description) batch_69d6382565148190942ff8fce23b2f01 completed April 8, 2026, 11:12 a.m.
Created at: March 22, 2026, 4:45 p.m.