A man , who wears a blue shirt , sits , hunched over on a bench while a woman in a yellow dress carrying a red shopping bag walks behind him on an urban sidewalk .
It is impossible that a man sits on a bench while his wife walks behind him .
It is impossible that a man sits on a bench while his wife walks behind him .
We believe that a man sits on a bench while his wife walks behind him .
A man sits on a bench while his wife walks behind him .