Triple
T5905504
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tokyo Metropolitan Government |
E131331
|
entity |
| Predicate | formedByMergerOf |
P77
|
FINISHED |
| Object | Tokyo Prefecture |
E27983
|
NE FINISHED |
Named-entity recognition
Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.
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: Tokyo Prefecture | Statement: [Tokyo Metropolitan Government, formedByMergerOf, Tokyo Prefecture]
Disambiguation candidates (1 decision)
The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tokyo Prefecture Context triple: [Tokyo Metropolitan Government, formedByMergerOf, Tokyo Prefecture]
-
A.
Tokyo Prefecture
chosen
Tokyo Prefecture is Japan’s capital metropolitan region, encompassing the city of Tokyo and serving as the country’s political, economic, and cultural center.
-
B.
Kanagawa Prefecture
Kanagawa Prefecture is a coastal region in Japan’s Kantō area, known for its major port city of Yokohama, historic Kamakura, and proximity to Tokyo.
-
C.
Kyoto Prefecture
Kyoto Prefecture is a region in Japan’s Kansai area known for its historic capital city of Kyoto, famous temples, traditional culture, and well-preserved heritage sites.
-
D.
Osaka Prefecture
Osaka Prefecture is a populous and economically vital region in Japan’s Kansai area, centered on the city of Osaka and known as a major hub of commerce, industry, and culture.
-
E.
Shizuoka Prefecture
Shizuoka Prefecture is a coastal region in central Japan known for its views of Mount Fuji, tea production, and location along the Pacific coast between Tokyo and Nagoya.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 batches)
| Stage | Batch ID | Job type | Status |
|---|---|---|---|
| creating | batch_69c0085864a88190a569c05ff7d65f29 |
elicitation | completed |
| NER | batch_69c0377159f88190a142cd7eed6118c1 |
ner | completed |
| NED1 | batch_69c20d216ca481908791d8e891cd3e3a |
ned_source_triple | completed |
Created at: March 22, 2026, 3:59 p.m.