concepts: bike fall jump ramp ride
target: A boy falls riding his bike when he tried to jump on a ramp.
references: A boy falls riding his bike when he tried to jump on a ramp. A boy wanted to ride up a bike ramp, but instead he did a jump and fell. The boy rode his bike down a hill to jump a ramp, but missed and fell. Someone is riding a small bike, jumps off a ramp, and falls.