Sumida River
E221620
The Sumida River is a historically significant river flowing through central Tokyo, known for its scenic bridges, cherry blossoms, and cultural prominence in Japanese art and literature.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Sumida River canonical | 25 |
| Sumida | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1767860 — 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: Sumida River Context triple: [Adachi, hasRiver, Sumida River]
-
A.
Yamato River
The Yamato River is a major river in Japan’s Kansai region that flows through Nara and Osaka Prefectures before emptying into Osaka Bay.
-
B.
Sumida
Sumida is a special ward in Tokyo, Japan, known for landmarks such as the Tokyo Skytree and its traditional shitamachi neighborhoods.
-
C.
Shinano River
The Shinano River is Japan’s longest river, flowing through central Honshu before emptying into the Sea of Japan.
-
D.
Mukogawa River
The Mukogawa River is a prominent river in Japan’s Hyōgo Prefecture that flows through cities such as Nishinomiya before emptying into Osaka Bay.
-
E.
Yoshino River
The Yoshino River is one of Japan’s major rivers, renowned for its strong currents, hydroelectric dams, and scenic gorges as it flows across the island of Shikoku.
- 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: Sumida River Target entity description: The Sumida River is a historically significant river flowing through central Tokyo, known for its scenic bridges, cherry blossoms, and cultural prominence in Japanese art and literature.
-
A.
Yamato River
The Yamato River is a major river in Japan’s Kansai region that flows through Nara and Osaka Prefectures before emptying into Osaka Bay.
-
B.
Sumida
Sumida is a special ward in Tokyo, Japan, known for landmarks such as the Tokyo Skytree and its traditional shitamachi neighborhoods.
-
C.
Shinano River
The Shinano River is Japan’s longest river, flowing through central Honshu before emptying into the Sea of Japan.
-
D.
Mukogawa River
The Mukogawa River is a prominent river in Japan’s Hyōgo Prefecture that flows through cities such as Nishinomiya before emptying into Osaka Bay.
-
E.
Yoshino River
The Yoshino River is one of Japan’s major rivers, renowned for its strong currents, hydroelectric dams, and scenic gorges as it flows across the island of Shikoku.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| city | Tokyo ⓘ |
| country | Japan ⓘ |
| culturalSignificance |
frequent subject in Edo-period poetry
ⓘ
important motif in ukiyo-e woodblock prints ⓘ |
| featuredInGenre |
Kabuki plays set in Edo
ⓘ
Noh play "Sumidagawa" ⓘ
linked to:
Noh theatre
|
| featuredInWork |
ukiyo-e prints by Katsushika Hokusai
ⓘ
ukiyo-e prints by Utagawa Hiroshige ⓘ |
| flowsThrough |
Arakawa Ward
ⓘ
Chuo Ward ⓘ Koto Ward ⓘ Sumida Ward ⓘ
linked to:
Sumida ward
Taito Ward ⓘ central Tokyo ⓘ |
| hasAttraction |
Asakusa riverside area
ⓘ
linked to:
Asakusa
Sumida Park ⓘ Tokyo Skytree riverside area ⓘ |
| hasBridge |
Azuma Bridge
ⓘ
Eitai Bridge ⓘ Kiyosu Bridge ⓘ Komagata Bridge ⓘ Ryogoku Bridge ⓘ Sakurabashi Bridge ⓘ Tsukuda Bridge ⓘ |
| hasRecreation |
boating
ⓘ
hanami (flower viewing) ⓘ |
| hasTransport | water bus services ⓘ |
| hasViewOf |
Asakusa district
ⓘ
Tokyo Skytree ⓘ |
| historicalName |
Miyato River
ⓘ
Okawa ⓘ |
| hostsEvent | Sumida River Fireworks Festival ⓘ |
| knownFor |
appearance in Japanese art
ⓘ
appearance in Japanese literature ⓘ cherry blossoms ⓘ fireworks festivals ⓘ river cruises ⓘ scenic bridges ⓘ |
| length | approximately 27 kilometers ⓘ |
| locatedIn |
Kanto region
ⓘ
linked to:
Kantō region
Tokyo ⓘ |
| mouth | Tokyo Bay ⓘ |
| partOf |
Arakawa River system
ⓘ
linked to:
Arakawa River
|
| passesNear |
Asakusa
ⓘ
Ryogoku ⓘ
linked to:
Ryōgoku
Tsukiji ⓘ |
| region | Honshu ⓘ |
| sourceRiver | Arakawa River ⓘ |
| waterwayType | tidal river ⓘ |
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: Sumida River Description of subject: The Sumida River is a historically significant river flowing through central Tokyo, known for its scenic bridges, cherry blossoms, and cultural prominence in Japanese art and literature.
Referenced by (26)
Full triples — surface form annotated when it differs from this entity's canonical label.