sentence: There are two people out on a snow tubing slope where one of them is video taping his experience of snow tubing with his friend. sentence:  There's a woman who picks up some ice that's fallen o the ground. sentence:  There are several people waiting in line to go snow tubing. sentence:  After they reach the top of the slope, they get into their tubes and begin sliding downhill. sentence:  They go down the snow covered slopes till they reach the bottom.