gptkbp:instance_of
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gptkb:lake
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gptkbp:bfsLayer
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5
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gptkbp:bfsParent
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gptkb:Mälaren_Nature_Reserve
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gptkbp:area
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1,140 square kilometers
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gptkbp:contains
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gptkb:Lake_Mälaren
gptkb:Lake_Båven
gptkb:Lake_Hålsjö
Lake Ekoln
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gptkbp:environmental_impact
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gptkb:species
pollution
water quality degradation
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gptkbp:flows_into
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gptkb:Lake_Hjelmaren
gptkb:River_Fyris
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gptkbp:historical_event
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gptkb:Foundation_of_Stockholm
gptkb:Battle_of_Västerås
Construction of Drottningholm Palace
Development of the Mälaren Canal
Establishment of Uppsala University
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gptkbp:historical_significance
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gptkb:archaeological_site
important trade route
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https://www.w3.org/2000/01/rdf-schema#label
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Mälaren lake system
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gptkbp:is_connected_to
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gptkb:Baltic_Sea
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gptkbp:is_part_of
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gptkb:Stockholm_County
gptkb:Södermanland_County
gptkb:Uppsala_County
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gptkbp:is_popular_in
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fishing
boating
recreational activities
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gptkbp:is_protected_by
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gptkb:Ekerö_Nature_Reserve
gptkb:Sundbyberg_Nature_Reserve
gptkb:Uppsala_Nature_Reserve
gptkb:Mälaren_Nature_Reserve
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gptkbp:length
|
120 kilometers
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gptkbp:located_in
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gptkb:Sweden
|
gptkbp:major_city
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gptkb:Stockholm
gptkb:Sundbyberg
gptkb:Västerås
Bromma
Uppsala
Ekerö
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gptkbp:supports
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biodiversity
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gptkbp:surrounding_area
|
gptkb:Håbo_Municipality
gptkb:Enköping_Municipality
gptkb:Norrtälje_Municipality
gptkb:Sigtuna_Municipality
Mälaren Valley
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gptkbp:tourist_attraction
|
gptkb:Västerås_Cathedral
gptkb:Skokloster_Castle
gptkb:Gripsholm_Castle
gptkb:Uppsala_University_Botanical_Garden
gptkb:Drottningholm_Palace
|