Children ride a balloon ride in an amusement park .
It is highly unlikely that a group of brothers and sisters are riding on a balloon ride at the amusement park .
It is highly unlikely that a group of brothers and sisters are riding on a balloon ride at the amusement park .
It is probable that a group of brothers and sisters are riding on a balloon ride at the amusement park .
A group of brothers and sisters are riding on a balloon ride at the amusement park .