A group of people seated at a picnic table under a tent space decorated with flags and stars .
Chances are about even that a group of people seated at a picnic table on the surface of the moon .
It is impossible that a group of people seated at a picnic table on the surface of the moon .
Chances are about even that a group of people seated at a picnic table on the surface of the moon .
A group of people seated at a picnic table on the surface of the moon .