A little boy , playing t-ball on a sunny day with his dad watching from behind the fence .
It is probably not the case that a boy is playing tball while a guy is behind a fence .
It is certain that a boy is playing tball while a guy is behind a fence .
It is probably not the case that a boy is playing tball while a guy is behind a fence .
A boy is playing tball while a guy is behind a fence .