Triple

T18559307
Position Surface form Disambiguated ID Type / Status
Subject Ueda E453589 entity
Predicate locatedOnRiver P165 FINISHED
Object Chikuma River
The Chikuma River, also known downstream as the Shinano River, is Japan’s longest river, flowing through Nagano Prefecture before emptying into the Sea of Japan.
 E1533324 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: Chikuma River | Statement: [Ueda, locatedOnRiver, Chikuma River]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chikuma River
Context triple: [Ueda, locatedOnRiver, Chikuma River]
  • A. Kumagawa River
    Kumagawa River is a major river in Japan’s Kyushu region known for its fast currents, scenic gorges, and frequent flooding.
  • B. Yoshida River
    The Yoshida River is a significant waterway flowing through Japan’s Miyagi Prefecture, contributing to the region’s natural landscape and local ecosystems.
  • C. Tenryu River
    The Tenryu River is a major river in central Japan that flows through Nagano and Shizuoka Prefectures before emptying into the Pacific Ocean, known for its strong currents and scenic gorges.
  • D. Kamogawa River
    The Kamogawa River is a prominent river flowing through Kyoto, Japan, known for its scenic banks lined with traditional teahouses, restaurants, and popular walking paths.
  • E. Iruma River
    The Iruma River is a river in Japan that flows through Saitama Prefecture and joins the larger Arakawa River system.
  • 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: Chikuma River
Triple: [Ueda, locatedOnRiver, Chikuma River]
Generated description
The Chikuma River, also known downstream as the Shinano River, is Japan’s longest river, flowing through Nagano Prefecture before emptying into the Sea of Japan.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Chikuma River
Target entity description: The Chikuma River, also known downstream as the Shinano River, is Japan’s longest river, flowing through Nagano Prefecture before emptying into the Sea of Japan.
  • A. Kumagawa River
    Kumagawa River is a major river in Japan’s Kyushu region known for its fast currents, scenic gorges, and frequent flooding.
  • B. Yoshida River
    The Yoshida River is a significant waterway flowing through Japan’s Miyagi Prefecture, contributing to the region’s natural landscape and local ecosystems.
  • C. Tenryu River
    The Tenryu River is a major river in central Japan that flows through Nagano and Shizuoka Prefectures before emptying into the Pacific Ocean, known for its strong currents and scenic gorges.
  • D. Kamogawa River
    The Kamogawa River is a prominent river flowing through Kyoto, Japan, known for its scenic banks lined with traditional teahouses, restaurants, and popular walking paths.
  • E. Iruma River
    The Iruma River is a river in Japan that flows through Saitama Prefecture and joins the larger Arakawa River system.
  • 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_69d8d388b0c881908e610a1c45b52640 completed April 10, 2026, 10:40 a.m.
NER Named-entity recognition batch_69e53808c3fc8190aac38b29296cee13 completed April 19, 2026, 8:16 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0ae99b7ec48190b3ddfe3bf61ab8fb completed May 18, 2026, 10:27 a.m.
NEDg Description generation batch_6a0aea2e16f881909311d0ad4694a7df completed May 18, 2026, 10:30 a.m.
NED2 Entity disambiguation (via description) batch_6a0aeabfc9a08190b7eefb232ac07ed8 completed May 18, 2026, 10:32 a.m.
Created at: April 10, 2026, 11:42 a.m.