sentence: A person snowboard on a steep mountain going down without falling. sentence:  Other men snowboard down the mountain falling from very high and land stand on the mountain. sentence:  A man flips in the air, then lands on the snow to continue skiing down the mountain with deep snow. sentence:  Other people snowboard on the mountain going down the slopes. sentence:  A person drives a snow motorcycle on the mountains. sentence:  After, men continues snowboard on the high mountain with deep snow.