Triple

T11406080
Position Surface form Disambiguated ID Type / Status
Subject JR Hokkaido E270240 entity
Predicate operatesLine P15252 FINISHED
Object Sekihoku Main Line
The Sekihoku Main Line is a railway line in Hokkaido, Japan, connecting inland cities across the island’s mountainous interior and serving as an important regional transport route.
 E1232007 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: Sekihoku Main Line | Statement: [JR Hokkaido, operatesLine, Sekihoku Main Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Sekihoku Main Line
Context triple: [JR Hokkaido, operatesLine, Sekihoku Main Line]
  • A. 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.
  • B. Sekisho Line
    The Sekisho Line is a railway line in Hokkaido, Japan, providing a key inland route that connects the Sapporo area with eastern Hokkaido.
  • C. Uetsu Main Line
    The Uetsu Main Line is a major railway line in northern Japan that runs along the Sea of Japan coast, connecting Niigata and Akita through rural areas including Yamagata Prefecture.
  • D. Senmō Main Line
    The Senmō Main Line is a rural railway line in eastern Hokkaido, Japan, known for its scenic route through sparsely populated landscapes and its operation by the Hokkaido Railway Company (JR Hokkaido).
  • E. 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.
  • 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: Sekihoku Main Line
Triple: [JR Hokkaido, operatesLine, Sekihoku Main Line]
Generated description
The Sekihoku Main Line is a railway line in Hokkaido, Japan, connecting inland cities across the island’s mountainous interior and serving as an important regional transport route.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Sekihoku Main Line
Target entity description: The Sekihoku Main Line is a railway line in Hokkaido, Japan, connecting inland cities across the island’s mountainous interior and serving as an important regional transport route.
  • A. 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.
  • B. Sekisho Line
    The Sekisho Line is a railway line in Hokkaido, Japan, providing a key inland route that connects the Sapporo area with eastern Hokkaido.
  • C. Uetsu Main Line
    The Uetsu Main Line is a major railway line in northern Japan that runs along the Sea of Japan coast, connecting Niigata and Akita through rural areas including Yamagata Prefecture.
  • D. Senmō Main Line
    The Senmō Main Line is a rural railway line in eastern Hokkaido, Japan, known for its scenic route through sparsely populated landscapes and its operation by the Hokkaido Railway Company (JR Hokkaido).
  • E. 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.
  • 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_69d6aaddeaa8819088b30ef7b50598c9 completed April 8, 2026, 7:22 p.m.
NER Named-entity recognition batch_69d8014c820c81908538ba4a08e13230 completed April 9, 2026, 7:43 p.m.
NED1 Entity disambiguation (via context triple) batch_6a00a4fffa7c81909bcc833b44ddf66f completed May 10, 2026, 3:32 p.m.
NEDg Description generation batch_6a00a5c4e934819088db49d81be154c3 completed May 10, 2026, 3:35 p.m.
NED2 Entity disambiguation (via description) batch_6a00a6b84d288190aeccb06745146b80 completed May 10, 2026, 3:39 p.m.
Created at: April 8, 2026, 9:34 p.m.