Triple

T15525333
Position Surface form Disambiguated ID Type / Status
Subject Ōshū, Iwate, Japan E369067 entity
Predicate formedByMergerOf P77 FINISHED
Object Maesawa, Iwate
Maesawa, Iwate was a former town in Iwate Prefecture, Japan, that later became part of the city of Ōshū through municipal merger.
 E1164460 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: Maesawa, Iwate | Statement: [Ōshū, Iwate, Japan, formedByMergerOf, Maesawa, Iwate]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Maesawa, Iwate
Context triple: [Ōshū, Iwate, Japan, formedByMergerOf, Maesawa, Iwate]
  • A. Koromogawa, Iwate
    Koromogawa, Iwate was a former municipality in Iwate Prefecture, Japan, that was incorporated into the city of Ōshū during a municipal merger.
  • B. Kitakami, Iwate
    Kitakami, Iwate is a city in Iwate Prefecture, Japan, known for its scenic Kitakami River, springtime cherry blossoms, and historical cultural sites.
  • C. Tono, Iwate
    Tono, Iwate is a rural city in Iwate Prefecture, Japan, famed for its rich folklore traditions and as the setting of the classic collection "Tono Monogatari."
  • D. Ichinoseki, Iwate
    Ichinoseki, Iwate is a city in southern Iwate Prefecture, Japan, known as a regional hub with historical sites and access to scenic areas such as the Geibi Gorge.
  • E. Ōshū, Iwate
    Ōshū, Iwate is a city in Iwate Prefecture, Japan, known for its historical sites, agricultural production, and scenic rural 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: Maesawa, Iwate
Triple: [Ōshū, Iwate, Japan, formedByMergerOf, Maesawa, Iwate]
Generated description
Maesawa, Iwate was a former town in Iwate Prefecture, Japan, that later became part of the city of Ōshū through municipal merger.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Maesawa, Iwate
Target entity description: Maesawa, Iwate was a former town in Iwate Prefecture, Japan, that later became part of the city of Ōshū through municipal merger.
  • A. Koromogawa, Iwate chosen
    Koromogawa, Iwate was a former municipality in Iwate Prefecture, Japan, that was incorporated into the city of Ōshū during a municipal merger.
  • B. Kitakami, Iwate
    Kitakami, Iwate is a city in Iwate Prefecture, Japan, known for its scenic Kitakami River, springtime cherry blossoms, and historical cultural sites.
  • C. Tono, Iwate
    Tono, Iwate is a rural city in Iwate Prefecture, Japan, famed for its rich folklore traditions and as the setting of the classic collection "Tono Monogatari."
  • D. Ichinoseki, Iwate
    Ichinoseki, Iwate is a city in southern Iwate Prefecture, Japan, known as a regional hub with historical sites and access to scenic areas such as the Geibi Gorge.
  • E. Ōshū, Iwate
    Ōshū, Iwate is a city in Iwate Prefecture, Japan, known for its historical sites, agricultural production, and scenic rural 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_69d85a1794cc8190b0b428716296e63e completed April 10, 2026, 2:01 a.m.
NER Named-entity recognition batch_69e04145178481909fb0339a79d4239e completed April 16, 2026, 1:54 a.m.
NED1 Entity disambiguation (via context triple) batch_69ff56bb23e88190bb3e9ad5e409a2f8 completed May 9, 2026, 3:46 p.m.
NEDg Description generation batch_69ff57e4dc108190b18e801a814a7c11 completed May 9, 2026, 3:51 p.m.
NED2 Entity disambiguation (via description) batch_69ff583680588190b52a75a73624503a completed May 9, 2026, 3:52 p.m.
Created at: April 10, 2026, 4:05 a.m.