A child runs with a football.
A man runs with a football.
A  child cannot become a man.
exists e1 x1 x2.(with(e1,x2) & n_football(x2) & Actor(e1,x1) & v_run(e1) & n_child(x1))
exists e1 x1 x2.(with(e1,x2) & n_football(x2) & Actor(e1,x1) & v_run(e1) & n_man(x1))