A man shaving with a straight razor.
A man is shaving his mustache.
Just because a man is shaving does not mean he is shaving his mustache.
exists e1 s1 x1 x2 x3.(a_topic(x1) & with(e1,x3) & n_razor(x3) & a_straight(s1) & Theme(s1,x3) & Actor(e1,x2) & v_shave(e1) & (x1 = x2) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_shave(e1) & n_mustache(x2) & of(x2,x1) & n_male(x1) & n_man(x1))