Iwata, Shizuoka Prefecture, Japan
E515652
Iwata is a city in Shizuoka Prefecture, Japan, known as an industrial hub and home to major manufacturers including Yamaha Motor Company.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Iwata, Shizuoka Prefecture, Japan canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5368715 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Iwata, Shizuoka Prefecture, Japan Context triple: [Yamaha Motor Company, headquartersLocation, Iwata, Shizuoka Prefecture, Japan]
-
A.
Hamamatsu, Shizuoka, Japan
Hamamatsu, in Shizuoka Prefecture, Japan, is an industrial city known for its musical instrument and motorcycle manufacturing and as the birthplace of Nobel Prize–winning physicist Hiroshi Amano.
-
B.
Hadano, Kanagawa Prefecture, Japan
Hadano, in Kanagawa Prefecture, Japan, is a suburban city known for its natural scenery at the foot of the Tanzawa Mountains and as the hometown of actress Rinko Kikuchi.
-
C.
Yokosuka, Kanagawa, Japan
Yokosuka, in Kanagawa Prefecture, Japan, is a major naval port city hosting both Japanese and U.S. military bases and serving as an important maritime and industrial center.
-
D.
Atsugi, Kanagawa, Japan
Atsugi, in Kanagawa Prefecture, Japan, is a city in the Greater Tokyo area known for its mix of residential neighborhoods, industrial facilities, and technology-related offices.
-
E.
Toyohashi, Aichi Prefecture, Japan
Toyohashi, in Aichi Prefecture, Japan, is a mid-sized industrial and commercial city on Honshu known for its manufacturing base and role as a regional transportation hub.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Iwata, Shizuoka Prefecture, Japan Target entity description: Iwata is a city in Shizuoka Prefecture, Japan, known as an industrial hub and home to major manufacturers including Yamaha Motor Company.
-
A.
Hamamatsu, Shizuoka, Japan
Hamamatsu, in Shizuoka Prefecture, Japan, is an industrial city known for its musical instrument and motorcycle manufacturing and as the birthplace of Nobel Prize–winning physicist Hiroshi Amano.
-
B.
Hadano, Kanagawa Prefecture, Japan
Hadano, in Kanagawa Prefecture, Japan, is a suburban city known for its natural scenery at the foot of the Tanzawa Mountains and as the hometown of actress Rinko Kikuchi.
-
C.
Yokosuka, Kanagawa, Japan
Yokosuka, in Kanagawa Prefecture, Japan, is a major naval port city hosting both Japanese and U.S. military bases and serving as an important maritime and industrial center.
-
D.
Atsugi, Kanagawa, Japan
Atsugi, in Kanagawa Prefecture, Japan, is a city in the Greater Tokyo area known for its mix of residential neighborhoods, industrial facilities, and technology-related offices.
-
E.
Toyohashi, Aichi Prefecture, Japan
Toyohashi, in Aichi Prefecture, Japan, is a mid-sized industrial and commercial city on Honshu known for its manufacturing base and role as a regional transportation hub.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf | city ⓘ |
| agriculturalProduct |
green tea
ⓘ
lettuce ⓘ melons ⓘ |
| borderedBy |
Fukuroi
NERFINISHED
ⓘ
Hamamatsu NERFINISHED ⓘ Kakegawa NERFINISHED ⓘ Mori NERFINISHED ⓘ Pacific Ocean ⓘ |
| climate | humid subtropical climate ⓘ |
| climateClassification | Cfa (Köppen) ⓘ |
| country | Japan ⓘ |
| economicBase |
agriculture
ⓘ
automotive industry ⓘ motorcycle manufacturing ⓘ |
| governmentType | mayor–council ⓘ |
| hasBaseballTeam | Shizuoka Sangyo University baseball (local) ⓘ |
| hasCityHall | Iwata City Hall NERFINISHED ⓘ |
| hasExpresswayAccess |
Shin-Tōmei Expressway (nearby interchanges)
NERFINISHED
ⓘ
Tōmei Expressway (nearby interchanges) NERFINISHED ⓘ |
| hasFootballClub | Júbilo Iwata NERFINISHED ⓘ |
| hasJapaneseName | 磐田市 NERFINISHED ⓘ |
| hasMajorEmployer |
Yamaha Corporation (facilities)
NERFINISHED
ⓘ
Yamaha Motor Company NERFINISHED ⓘ |
| hasProfessionalSportsTeam | Júbilo Iwata NERFINISHED ⓘ |
| hasRailService | Tōkaidō Main Line NERFINISHED ⓘ |
| hasRailStation |
Iwata Station
NERFINISHED
ⓘ
Toyodachō Station NERFINISHED ⓘ |
| hasRoad |
Japan National Route 1
NERFINISHED
ⓘ
Japan National Route 150 NERFINISHED ⓘ Japan National Route 152 NERFINISHED ⓘ |
| hasSisterCity |
Changshu, Jiangsu, China
NERFINISHED
ⓘ
Pietrasanta, Tuscany, Italy NERFINISHED ⓘ Salinas, California, United States NERFINISHED ⓘ |
| hasSymbol |
city flower: (a designated flower; specific species varies by city)
ⓘ
city tree: camphor tree (commonly used in Japanese cities; specific may vary) ⓘ |
| hasUniversity | Shizuoka Sangyo University NERFINISHED ⓘ |
| isIndustrialHub | true ⓘ |
| knownFor |
Yamaha Motor Company headquarters
NERFINISHED
ⓘ
manufacturing industry ⓘ |
| language | Japanese ⓘ |
| leaderTitle | Mayor ⓘ |
| locatedIn |
Chūbu region
NERFINISHED
ⓘ
Shizuoka Prefecture NERFINISHED ⓘ |
| locatedOn | island of Honshū NERFINISHED ⓘ |
| partOf | Japan NERFINISHED ⓘ |
| servedByRailOperator | JR Central NERFINISHED ⓘ |
| timeZone | Japan Standard Time ⓘ |
| traversedByRiver | Tenryū River (nearby area) NERFINISHED ⓘ |
| utcOffset | +09:00 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Iwata, Shizuoka Prefecture, Japan Description of subject: Iwata is a city in Shizuoka Prefecture, Japan, known as an industrial hub and home to major manufacturers including Yamaha Motor Company.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.