A dog gets major air catching frisbees in a trick contest .
It is almost certain that during a contest , a dog jumps high into the air to catch a frisbee .
It is almost certain that during a contest , a dog jumps high into the air to catch a frisbee .
It is probably not the case that during a contest , a dog jumps high into the air to catch a frisbee .
During a contest , a dog jumps high into the air to catch a frisbee .