sentence: A young boy roller blades off a ramp and onto another ramp. sentence:  The boy speeds off onto a ramp and jumps off it, landing on the cement. sentence:  Later, the boy roller blades onto another ramp. sentence:  The young boy is seen in another outfit, performing spins at the end of his roller blading. sentence:  The boy roller blades criss cross style around some orange cones. sentence:  The boy does it again, this time weaving in and out of the cones.