Hassamu River
E854639
Hassamu River is a waterway flowing through the Nishi ward of Sapporo in Hokkaido, Japan, contributing to the area's urban landscape and drainage system.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Amenano River | 1 |
| Hassamu River canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9035509 — 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: Hassamu River Context triple: [Nishi-ku, Sapporo, hasRiver, Hassamu River]
-
A.
Takkaze River
The Takkaze River is a major river in the Horn of Africa that flows through the Ethiopian and Eritrean highlands, forming part of the border between the two countries before joining the Atbarah River.
-
B.
Aruwimi River
The Aruwimi River is a significant river in the Democratic Republic of the Congo, known for flowing through dense equatorial rainforest and contributing substantially to the Congo River basin.
-
C.
Warashina River
Warashina River is a regional river in Shizuoka Prefecture, Japan, that flows through Shizuoka City and contributes to its local watershed and landscape.
-
D.
Bunsuru River
The Bunsuru River is a tributary watercourse in northwestern Nigeria that feeds into the larger Sokoto River system.
-
E.
Yuruari River
The Yuruari River is a tributary waterway in southeastern Venezuela that feeds into the Caroní River within the Guiana Shield region.
- 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: Hassamu River Target entity description: Hassamu River is a waterway flowing through the Nishi ward of Sapporo in Hokkaido, Japan, contributing to the area's urban landscape and drainage system.
-
A.
Takkaze River
The Takkaze River is a major river in the Horn of Africa that flows through the Ethiopian and Eritrean highlands, forming part of the border between the two countries before joining the Atbarah River.
-
B.
Aruwimi River
The Aruwimi River is a significant river in the Democratic Republic of the Congo, known for flowing through dense equatorial rainforest and contributing substantially to the Congo River basin.
-
C.
Warashina River
Warashina River is a regional river in Shizuoka Prefecture, Japan, that flows through Shizuoka City and contributes to its local watershed and landscape.
-
D.
Bunsuru River
The Bunsuru River is a tributary watercourse in northwestern Nigeria that feeds into the larger Sokoto River system.
-
E.
Yuruari River
The Yuruari River is a tributary waterway in southeastern Venezuela that feeds into the Caroní River within the Guiana Shield region.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| administrativeArea |
Hokkaido Prefecture
ⓘ
linked to:
Prefecture of Hokkaido
Nishi-ku, Sapporo ⓘ Sapporo City ⓘ
linked to:
Sapporo
|
| continent | Asia ⓘ |
| contributesTo |
drainage system of Nishi-ku, Sapporo
ⓘ
urban landscape of Nishi-ku, Sapporo ⓘ |
| country | Japan ⓘ |
| environmentType | urban environment ⓘ |
| flowsThrough |
Nishi-ku, Sapporo
ⓘ
Sapporo ⓘ |
| geographicFeature | waterway ⓘ |
| hasHydrologicalFunction | drainage ⓘ |
| hasNameInLanguage | Japanese ⓘ |
| hasRole | urban waterway ⓘ |
| isPartOf | river network of Sapporo ⓘ |
| languageOfName | Japanese ⓘ |
| locatedIn |
Hokkaido
ⓘ
Hokkaido Prefecture ⓘ
linked to:
Prefecture of Hokkaido
Japan ⓘ Nishi-ku, Sapporo ⓘ Sapporo ⓘ |
| locatedOnIsland | Hokkaido ⓘ |
| partOf | urban drainage system of Sapporo ⓘ |
| region | Ishikari Subprefecture ⓘ |
| watercourseType | urban 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: Hassamu River Description of subject: Hassamu River is a waterway flowing through the Nishi ward of Sapporo in Hokkaido, Japan, contributing to the area's urban landscape and drainage system.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Hassamu River