gptkbp:instance_of
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gptkb:cave
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gptkbp:bfsLayer
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4
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gptkbp:bfsParent
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gptkb:Postojna_Cave
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gptkbp:contains
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gptkb:The_Hall_of_the_Great_Stalactite
gptkb:The_Hall_of_the_Stalactites
gptkb:concert_tour
gptkb:Postojna_Cave
The Hall of the Great Stalagmite
The Hall of the Stalagmites
The Ice Cave
Black Cave
The Beautiful Cave
The Great Mountain
The Hall of the Cave Fauna
The Hall of the Great Waterfall
The Hall of the Murmuring River
The Hall of the Underground River
The Spaghetti Cave
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gptkbp:discovered_by
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gptkb:Johann_Weichard_von_Valvasor
1818
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gptkbp:features
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gptkb:architect
biodiversity
exhibits
guided tours
stalactites
stalagmites
light displays
underground river
cave formations
train ride
cave fauna
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gptkbp:habitat
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gptkb:Proteus_anguinus
gptkb:species
cave-dwelling organisms
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gptkbp:has
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gptkb:Postojna_Cave_Gift_Shop
gptkb:Postojna_Cave_Hotel
gptkb:Postojna_Cave_Museum
gptkb:Postojna_Cave_Railway
gptkb:Postojna_Cave_Restaurant
gptkb:Postojna_Cave_Visitor_Center
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https://www.w3.org/2000/01/rdf-schema#label
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Postojna Cave System
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gptkbp:is_connected_to
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gptkb:Predjama_Castle
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gptkbp:is_known_for
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gptkb:historical_event
gptkb:archaeological_site
rich biodiversity
unique geological formations
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gptkbp:length
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24,120 meters
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gptkbp:location
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gptkb:Slovenia
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gptkbp:managed_by
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gptkb:Postojna_Cave_Park
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gptkbp:part_of
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gptkb:Postojna–_Planina_Cave_System
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gptkbp:tourist_attraction
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popular tourist destination
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gptkbp:visitors
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over 1 million annually
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