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Mountains, clean air, time to reboot
Warm clean frost with golden sand
Algae on rocks is a sign of clean water
Clean lake with green shores
Trees grow in clean water
Black and white clean tunnel in the subway
Clean water droplets on the surface
Forest clean trail before an eventful day
Blue kingfisher cleans feathers
Pretty pink roses for girls
A man cleans the road
Clouds over the harvesting of wheat by combine harvesters
Clouds over the harvesting of wheat by combine harvestersClouds over the harvesting of wheat by combine harvesters