sentence: A man is sitting down on the ground and has a skate show on one foot and a prosthetic leg for the other. sentence: The man then puts the roller blade over his prosthetic and then follows with the other foot. sentence: Once they are both on,he scoots to the grass and someone assists him as he gets up. sentence: After he is steady,he gets up and goes rollerblading down the sidewalk before coming back and sitting on the pavement.