A bunch of kids and adults playing with different colored balls on a rock sidewalk .
There is almost no chance that a group of people are playing a game of croquet on the rock sidewalk .
There is almost no chance that a group of people are playing a game of croquet on the rock sidewalk .
There is a very good chance that a group of people are playing a game of croquet on the rock sidewalk .
A group of people are playing a game of croquet on the rock sidewalk .