Triple

T15608252
Position Surface form Disambiguated ID Type / Status
Subject Tokachi River headwaters E375217 entity
Predicate hydrologicalBasin P1559 FINISHED
Object Tokachi River basin
The Tokachi River basin is the drainage area in eastern Hokkaido, Japan, encompassing the Tokachi River and its tributaries and supporting extensive agricultural and rural communities.
 E501374 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: Tokachi River basin | Statement: [Tokachi River headwaters, hydrologicalBasin, Tokachi River basin]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Tokachi River basin
Context triple: [Tokachi River headwaters, hydrologicalBasin, Tokachi River basin]
  • A. Ishikari River basin
    The Ishikari River basin is the extensive watershed in central Hokkaido, Japan, that collects and drains the waters of the Ishikari River and its tributaries into the Sea of Japan.
  • B. Shimanto River basin
    The Shimanto River basin is a scenic and relatively undeveloped river system in southwestern Shikoku, Japan, renowned for its clear waters, traditional rural landscapes, and cultural significance.
  • C. Iori River valley
    The Iori River valley is a geographic region shaped by the Iori River, characterized by its fertile lowlands and its role as a natural boundary and corridor in eastern Georgia and neighboring areas.
  • D. Tokachi River
    The Tokachi River is a major river in Hokkaido, Japan, known for flowing through the Tokachi Plain and supporting regional agriculture and settlements.
  • E. Niyodo River basin
    The Niyodo River basin is a river system in Shikoku, Japan, renowned for its exceptionally clear blue waters and scenic natural 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: Tokachi River basin
Triple: [Tokachi River headwaters, hydrologicalBasin, Tokachi River basin]
Generated description
The Tokachi River basin is the drainage area in eastern Hokkaido, Japan, encompassing the Tokachi River and its tributaries and supporting extensive agricultural and rural communities.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Tokachi River basin
Target entity description: The Tokachi River basin is the drainage area in eastern Hokkaido, Japan, encompassing the Tokachi River and its tributaries and supporting extensive agricultural and rural communities.
  • A. Ishikari River basin
    The Ishikari River basin is the extensive watershed in central Hokkaido, Japan, that collects and drains the waters of the Ishikari River and its tributaries into the Sea of Japan.
  • B. Shimanto River basin
    The Shimanto River basin is a scenic and relatively undeveloped river system in southwestern Shikoku, Japan, renowned for its clear waters, traditional rural landscapes, and cultural significance.
  • C. Iori River valley
    The Iori River valley is a geographic region shaped by the Iori River, characterized by its fertile lowlands and its role as a natural boundary and corridor in eastern Georgia and neighboring areas.
  • D. Tokachi River chosen
    The Tokachi River is a major river in Hokkaido, Japan, known for flowing through the Tokachi Plain and supporting regional agriculture and settlements.
  • E. Niyodo River basin
    The Niyodo River basin is a river system in Shikoku, Japan, renowned for its exceptionally clear blue waters and scenic natural landscapes.
  • F. None of above.

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_69d85ccf2794819096cda4cbcb02d478 completed April 10, 2026, 2:13 a.m.
NER Named-entity recognition batch_69e04e7ec08c8190b3842cf3043aea27 completed April 16, 2026, 2:50 a.m.
NED1 Entity disambiguation (via context triple) batch_6a002d966ffc8190aa0d9d3abf8ad593 completed May 10, 2026, 7:02 a.m.
NEDg Description generation batch_6a002ec2fd948190878af958d0b90ce6 completed May 10, 2026, 7:07 a.m.
NED2 Entity disambiguation (via description) batch_6a00312a4fc48190b6bd6ad9db71bb4d completed May 10, 2026, 7:18 a.m.
Created at: April 10, 2026, 4:13 a.m.