A little boy in red shorts , a boy in a black Speedo , and a boy in gray shorts are all running on the beach .
It is probably the case that the boys are playing and chasing each other on the beach .
It is probably the case that the boys are playing and chasing each other on the beach .
It is unlikely that the boys are playing and chasing each other on the beach .
The boys are playing and chasing each other on the beach .