A brown and white dog walks down a ramp toward a pool of water in which a green tennis ball floats .
It is almost certain that two dogs are about to jump inside in a pool to get a tennis ball .
It is impossible that two dogs are about to jump inside in a pool to get a tennis ball .
It is almost certain that two dogs are about to jump inside in a pool to get a tennis ball .
Two dogs are about to jump inside in a pool to get a tennis ball .