Triple

T11221120
Position Surface form Disambiguated ID Type / Status
Subject Ōu Main Line E265563 entity
Predicate hasSection P35 FINISHED
Object Fukushima–Yamagata section
The Fukushima–Yamagata section is a railway segment in northern Japan connecting Fukushima and Yamagata along the Ōu Main Line.
 E911418 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: Fukushima–Yamagata section | Statement: [Ōu Main Line, hasSection, Fukushima–Yamagata section]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Fukushima–Yamagata section
Context triple: [Ōu Main Line, hasSection, Fukushima–Yamagata section]
  • A. Okayama–Hakata section
    The Okayama–Hakata section is the western stretch of Japan’s Sanyō Shinkansen high-speed rail line, linking Okayama with Hakata (Fukuoka) across the Chūgoku region.
  • B. Omiya–Morioka
    Omiya–Morioka is the original northern segment of Japan’s Tōhoku Shinkansen high-speed rail line, connecting the Greater Tokyo area with the Tōhoku region.
  • C. Yamagata
    Yamagata is a city in northern Japan that serves as the capital of Yamagata Prefecture, known for its hot springs, winter sports, and cherry production.
  • D. Fukushima Prefecture
    Fukushima Prefecture is a large region in northeastern Honshu, Japan, known for its agriculture, hot springs, and the site of the 2011 nuclear disaster at the Fukushima Daiichi power plant.
  • E. Aizu region
    The Aizu region is a historic area in western Fukushima Prefecture, Japan, known for its samurai heritage, traditional castle town of Aizuwakamatsu, and scenic mountainous landscapes.
  • 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: Fukushima–Yamagata section
Triple: [Ōu Main Line, hasSection, Fukushima–Yamagata section]
Generated description
The Fukushima–Yamagata section is a railway segment in northern Japan connecting Fukushima and Yamagata along the Ōu Main Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Fukushima–Yamagata section
Target entity description: The Fukushima–Yamagata section is a railway segment in northern Japan connecting Fukushima and Yamagata along the Ōu Main Line.
  • A. Okayama–Hakata section
    The Okayama–Hakata section is the western stretch of Japan’s Sanyō Shinkansen high-speed rail line, linking Okayama with Hakata (Fukuoka) across the Chūgoku region.
  • B. Omiya–Morioka
    Omiya–Morioka is the original northern segment of Japan’s Tōhoku Shinkansen high-speed rail line, connecting the Greater Tokyo area with the Tōhoku region.
  • C. Yamagata
    Yamagata is a city in northern Japan that serves as the capital of Yamagata Prefecture, known for its hot springs, winter sports, and cherry production.
  • D. Fukushima Prefecture
    Fukushima Prefecture is a large region in northeastern Honshu, Japan, known for its agriculture, hot springs, and the site of the 2011 nuclear disaster at the Fukushima Daiichi power plant.
  • E. Aizu region
    The Aizu region is a historic area in western Fukushima Prefecture, Japan, known for its samurai heritage, traditional castle town of Aizuwakamatsu, and scenic mountainous landscapes.
  • 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_69d6aac59460819089b9848b27f57848 completed April 8, 2026, 7:21 p.m.
NER Named-entity recognition batch_69d7e8eb84c48190b4f3bede254afde2 completed April 9, 2026, 5:59 p.m.
NED1 Entity disambiguation (via context triple) batch_69e4977cab4481909c6b94ca07cd5e4a completed April 19, 2026, 8:51 a.m.
NEDg Description generation batch_69e49d37989881909c7e75ddfff06726 completed April 19, 2026, 9:15 a.m.
NED2 Entity disambiguation (via description) batch_69e49f41a1f8819087cc15527dc7ff63 completed April 19, 2026, 9:24 a.m.
Created at: April 8, 2026, 9:30 p.m.