Lake Toba

E94199

caldera lake tourist attraction volcanic crater lake

Lake Toba is a vast volcanic crater lake in northern Sumatra, Indonesia, renowned as one of the world’s largest and deepest volcanic lakes and a major natural and cultural tourism destination.

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All labels observed (3)

Label	Occurrences
Lake Toba canonical	12
Lake Toba region	1
Lake Toba–Asahan River system	1

How this entity was disambiguated

This entity first appeared as the object of triple T730823 — 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: Lake Toba
Context triple: [Sumatra, hasLake, Lake Toba]

A. Bala Lake
Bala Lake is the largest natural lake in Wales, renowned for its scenic surroundings and popularity for boating, fishing, and watersports.
B. Poopó Lake
Poopó Lake is a large, shallow saline lake in the Bolivian Andes, known for its fluctuating water levels and ecological importance to the surrounding Altiplano region.
C. Lake Velence
Lake Velence is one of Hungary’s largest natural lakes, known as a popular resort and recreation area in the Transdanubian region.
D. San Andreas Lake
San Andreas Lake is a long, narrow reservoir on the San Francisco Peninsula in California, best known for lending its name to the nearby San Andreas Fault.
E. Benya Lagoon
Benya Lagoon is a coastal lagoon in Elmina, Ghana, known for its fishing activities and proximity to the historic Elmina Castle.
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: Lake Toba
Target entity description: Lake Toba is a vast volcanic crater lake in northern Sumatra, Indonesia, renowned as one of the world’s largest and deepest volcanic lakes and a major natural and cultural tourism destination.

A. Bala Lake
Bala Lake is the largest natural lake in Wales, renowned for its scenic surroundings and popularity for boating, fishing, and watersports.
B. Poopó Lake
Poopó Lake is a large, shallow saline lake in the Bolivian Andes, known for its fluctuating water levels and ecological importance to the surrounding Altiplano region.
C. Lake Velence
Lake Velence is one of Hungary’s largest natural lakes, known as a popular resort and recreation area in the Transdanubian region.
D. San Andreas Lake
San Andreas Lake is a long, narrow reservoir on the San Francisco Peninsula in California, best known for lending its name to the nearby San Andreas Fault.
E. Benya Lagoon
Benya Lagoon is a coastal lagoon in Elmina, Ghana, known for its fishing activities and proximity to the historic Elmina Castle.
F. None of above. chosen

Statements (63)

Predicate	Object
instanceOf	caldera lake ⓘ tourist attraction ⓘ volcanic crater lake ⓘ
basinCountry	Indonesia ⓘ
country	Indonesia ⓘ
environmentalConcern	deforestation in surrounding areas ⓘ fish farming impacts ⓘ water pollution risks ⓘ
formedBy	supervolcanic eruption ⓘ
governedBy	North Sumatra provincial authorities ⓘ
hasCulturalSignificanceFor	Batak ⓘ surface form: Batak people
hasEconomicActivity	fisheries ⓘ small-scale agriculture ⓘ tourism industry ⓘ
hasFeature	Samosir Island ⓘ caldera rim ⓘ hot springs ⓘ peninsulas and bays ⓘ steep crater walls ⓘ
hasIsland	Samosir Island ⓘ numerous small islands ⓘ
inhabitedBy	Batak ⓘ surface form: Batak Toba people
isMajorDestinationFor	domestic tourists ⓘ international tourists ⓘ
knownFor	Batak culture ⓘ being one of the world’s deepest volcanic lakes ⓘ being one of the world’s largest volcanic lakes ⓘ cool highland climate ⓘ cultural tourism ⓘ freshwater fish ⓘ natural tourism ⓘ scenic mountain landscapes ⓘ traditional Batak houses ⓘ
languageRegion	Batak languages ⓘ
locatedIn	North Sumatra ⓘ Southeast Asia ⓘ Toba Caldera ⓘ Toba Highlands ⓘ tropical climate zone ⓘ
locatedNear	Medan ⓘ
locatedOn	Sumatra ⓘ surface form: island of Sumatra
nearbyEthnicGroup	Batak ⓘ surface form: Batak Karo people Batak ⓘ surface form: Batak Simalungun people
partOf	East Indies ⓘ Malay Archipelago ⓘ Toba Caldera Geopark ⓘ
popularActivity	boating ⓘ cultural performances ⓘ fishing ⓘ hiking ⓘ swimming ⓘ
recognizedAs	UNESCO Global Geoparks ⓘ surface form: UNESCO Global Geopark
religionRegion	Christianity among Batak communities ⓘ Islam in surrounding areas ⓘ
surroundedBy	Batak villages ⓘ hills ⓘ volcanic mountains ⓘ
tourismType	adventure tourism ⓘ cultural tourism ⓘ ecotourism ⓘ
transportAccess	ferry services to Samosir Island ⓘ road connections from Medan ⓘ
waterType	freshwater ⓘ

How these facts were elicited

Referenced by (14)

Full triples — surface form annotated when it differs from this entity's canonical label.

Sumatra → hasLake → Lake Toba ⓘ

Batak → culturalCenter → Lake Toba ⓘ

this entity surface form: Lake Toba region

Batak → notableLake → Lake Toba ⓘ

Medan → nearbyAttraction → Lake Toba ⓘ

North Sumatra → contains → Lake Toba ⓘ

North Sumatra → hasAttraction → Lake Toba ⓘ

Asahan River → source → Lake Toba ⓘ

Asahan River → partOf → Lake Toba ⓘ

this entity surface form: Lake Toba–Asahan River system

Samosir Island → locatedIn → Lake Toba ⓘ

Samosir Island → surroundedBy → Lake Toba ⓘ

Samosir Island → islandInLake → Lake Toba ⓘ

Sipiso-piso Waterfall → locatedNear → Lake Toba ⓘ

Sipiso-piso Waterfall → watercourseDestination → Lake Toba ⓘ

Pematangsiantar → connectsTo → Lake Toba ⓘ

All labels observed (3)

How this entity was disambiguated Show

Statements (63)

How these facts were elicited Show

Referenced by (14)

How this entity was disambiguated

How these facts were elicited