Okutama Lake area
E747024
The Okutama Lake area is a scenic mountain reservoir region in western Tokyo known for hiking, camping, fishing, and lakeside leisure activities.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Okutama Lake area canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8627351 — 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: Okutama Lake area Context triple: [Okutama, hasRecreationArea, Okutama Lake area]
-
A.
Kakagi Lake
Kakagi Lake is a scenic freshwater lake in northwestern Ontario, Canada, known for its clear waters, rugged islands, and excellent fishing and outdoor recreation opportunities.
-
B.
Mount Ikoma area
Mount Ikoma area is a scenic mountainous region on the border of Osaka and Nara Prefectures in Japan, known for its panoramic city views, temples, hiking trails, and seasonal cherry blossoms.
-
C.
Oguta Lake
Oguta Lake is a scenic natural freshwater lake in southeastern Nigeria known for its recreational activities, cultural significance, and picturesque surroundings.
-
D.
Biwako Quasi-National Park
Biwako Quasi-National Park is a protected natural area in Japan centered around Lake Biwa, renowned for its scenic lakeside landscapes, mountains, and rich biodiversity.
-
E.
Shiretoko Five Lakes
Shiretoko Five Lakes is a scenic group of small, forest-surrounded lakes on Japan’s Shiretoko Peninsula, renowned for its walking trails, wildlife viewing, and views of untouched wilderness.
- 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: Okutama Lake area Target entity description: The Okutama Lake area is a scenic mountain reservoir region in western Tokyo known for hiking, camping, fishing, and lakeside leisure activities.
-
A.
Kakagi Lake
Kakagi Lake is a scenic freshwater lake in northwestern Ontario, Canada, known for its clear waters, rugged islands, and excellent fishing and outdoor recreation opportunities.
-
B.
Mount Ikoma area
Mount Ikoma area is a scenic mountainous region on the border of Osaka and Nara Prefectures in Japan, known for its panoramic city views, temples, hiking trails, and seasonal cherry blossoms.
-
C.
Oguta Lake
Oguta Lake is a scenic natural freshwater lake in southeastern Nigeria known for its recreational activities, cultural significance, and picturesque surroundings.
-
D.
Biwako Quasi-National Park
Biwako Quasi-National Park is a protected natural area in Japan centered around Lake Biwa, renowned for its scenic lakeside landscapes, mountains, and rich biodiversity.
-
E.
Shiretoko Five Lakes
Shiretoko Five Lakes is a scenic group of small, forest-surrounded lakes on Japan’s Shiretoko Peninsula, renowned for its walking trails, wildlife viewing, and views of untouched wilderness.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
lake district
ⓘ
tourist destination ⓘ |
| accessibleBy |
JR Ōme Line to Okutama Station
ⓘ
linked to:
JR East Ōme Line
buses from Okutama Station ⓘ |
| bestSeasonForVisit |
autumn
ⓘ
spring ⓘ |
| climate | humid subtropical climate ⓘ |
| country | Japan ⓘ |
| distanceFromCentralTokyo | about 60–80 kilometers west ⓘ |
| hasActivity |
barbecue
ⓘ
birdwatching ⓘ canoeing ⓘ kayaking ⓘ road cycling ⓘ scenic driving ⓘ |
| hasBodyOfWater | Lake Okutama ⓘ |
| hasFacility |
bus stops
ⓘ
campgrounds ⓘ fishing piers ⓘ parking areas ⓘ viewpoints ⓘ |
| hasInfrastructure |
Ogouchi Dam
ⓘ
linked to:
Ogōchi Dam
|
| hasRiver |
Nippara River
ⓘ
Tama River ⓘ |
| hasTrail |
Lake Okutama lakeside walking paths
ⓘ
Okutama Mukashi-michi trail ⓘ |
| hasView | reservoir and surrounding mountains ⓘ |
| knownFor |
autumn foliage
ⓘ
camping ⓘ day trips from Tokyo ⓘ fishing ⓘ hiking ⓘ lakeside leisure activities ⓘ mountain scenery ⓘ |
| locatedIn |
Kantō region
ⓘ
Okutama, Tokyo ⓘ Tokyo Prefecture ⓘ |
| nearMountain |
Mount Gozen
ⓘ
Mount Kumotori ⓘ Mount Mitake ⓘ |
| partOf |
Chichibu-Tama-Kai National Park
ⓘ
linked to:
Chichibu Tama Kai National Park
|
| popularWith |
anglers
ⓘ
campers ⓘ hikers ⓘ photographers ⓘ |
| waterSourceFor | Tokyo metropolitan area ⓘ |
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: Okutama Lake area Description of subject: The Okutama Lake area is a scenic mountain reservoir region in western Tokyo known for hiking, camping, fishing, and lakeside leisure activities.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.