Okama Crater Lake
E585165
Okama Crater Lake is a vividly colored volcanic crater lake on Mount Zao in northern Japan, famous for its changing hues and scenic alpine setting.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Okama crater lake | 4 |
| Okama Crater Lake canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6322224 — 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: Okama Crater Lake Context triple: [Miyagi Prefecture, contains, Okama Crater Lake]
-
A.
Rano Aroi crater lake
Rano Aroi crater lake is a small, high-altitude volcanic crater lake on Easter Island known for its peat bogs and unique wetland ecosystem.
-
B.
Rano Kau crater lake
Rano Kau crater lake is a freshwater lake filling the vast volcanic crater of Rano Kau on Easter Island, notable for its steep cliffs, unique microclimate, and cultural significance to the Rapa Nui people.
-
C.
Soda Lake
Soda Lake is a dry alkali lakebed in the Mojave Desert of California, known for its white mineral crusts and stark desert landscape.
-
D.
Empakaai Crater
Empakaai Crater is a scenic volcanic caldera in northern Tanzania renowned for its deep soda lake, steep forested walls, and abundant birdlife within the Ngorongoro ecosystem.
-
E.
Lake Okataina
Lake Okataina is a scenic volcanic lake in New Zealand’s Bay of Plenty region, known for its clear waters, surrounding native forest, and outdoor recreation opportunities.
- 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: Okama Crater Lake Target entity description: Okama Crater Lake is a vividly colored volcanic crater lake on Mount Zao in northern Japan, famous for its changing hues and scenic alpine setting.
-
A.
Rano Aroi crater lake
Rano Aroi crater lake is a small, high-altitude volcanic crater lake on Easter Island known for its peat bogs and unique wetland ecosystem.
-
B.
Rano Kau crater lake
Rano Kau crater lake is a freshwater lake filling the vast volcanic crater of Rano Kau on Easter Island, notable for its steep cliffs, unique microclimate, and cultural significance to the Rapa Nui people.
-
C.
Soda Lake
Soda Lake is a dry alkali lakebed in the Mojave Desert of California, known for its white mineral crusts and stark desert landscape.
-
D.
Empakaai Crater
Empakaai Crater is a scenic volcanic caldera in northern Tanzania renowned for its deep soda lake, steep forested walls, and abundant birdlife within the Ngorongoro ecosystem.
-
E.
Lake Okataina
Lake Okataina is a scenic volcanic lake in New Zealand’s Bay of Plenty region, known for its clear waters, surrounding native forest, and outdoor recreation opportunities.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
tourist attraction
ⓘ
volcanic crater lake ⓘ |
| alsoKnownAs |
Goshiki-numa of Zao
ⓘ
linked to:
Goshikinuma
Okama ⓘ |
| climate | cool temperate ⓘ |
| country | Japan ⓘ |
| diameter | approximately 300 meters ⓘ |
| elevation | approximately 1550 meters above sea level ⓘ |
| famousFor |
panoramic mountain views
ⓘ
seasonal scenery ⓘ |
| formedBy | volcanic eruption ⓘ |
| geologicalFeature | crater of a stratovolcano ⓘ |
| hazard | volcanic gases ⓘ |
| locatedIn |
Honshu
ⓘ
Japan ⓘ Miyagi Prefecture ⓘ Mount Zao ⓘ Tohoku region ⓘ
linked to:
Tohoku
Yamagata Prefecture NERFINISHED ⓘ Zao mountain range ⓘ
linked to:
Zao Mountains
|
| locatedOnVolcano | Mount Zao ⓘ |
| maximumDepth | approximately 25 meters ⓘ |
| namedAfter | its pot-like shape ⓘ |
| nameMeaning | “okama” means “cooking pot” in Japanese ⓘ |
| near | border of Miyagi and Yamagata Prefectures ⓘ |
| notableFor |
frequently changing water color
ⓘ
scenic alpine setting ⓘ vividly colored water ⓘ |
| partOf | Zao Quasi-National Park ⓘ |
| primaryAccessPoint |
Zao Echo Line
ⓘ
linked to:
Norikura Skyline
Zao Highline ⓘ |
| regionType | alpine ⓘ |
| seasonalFeature |
autumn foliage
ⓘ
lush greenery in summer ⓘ snowy landscape in winter ⓘ |
| shape | circular ⓘ |
| swimmingAllowed | no ⓘ |
| tourismActivity |
hiking
ⓘ
photography ⓘ sightseeing ⓘ |
| touristPopularity | major sightseeing spot in northern Japan ⓘ |
| viewedFrom | nearby observation points ⓘ |
| volcanicComplex | Zao volcano ⓘ |
| waterChemistry | acidic ⓘ |
| waterColor |
deep blue
ⓘ
emerald green ⓘ turquoise ⓘ |
| waterType | crater lake ⓘ |
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: Okama Crater Lake Description of subject: Okama Crater Lake is a vividly colored volcanic crater lake on Mount Zao in northern Japan, famous for its changing hues and scenic alpine setting.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Okama Crater Lake
linked to: Okama Crater Lake
linked to: Okama Crater Lake