A man plays the drums with a serious expression.
An angry man plays the drums with a mad expression.
One cannot assume that the man is angry or that his expression is mad.
exists e1 s1 x1 x2 x3.(n_drum(x2) & with(e1,x3) & n_expression(x3) & a_serious(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_man(x1))
exists e1 s1 s2 x1 x2 x3.(n_drum(x2) & with(e1,x3) & n_expression(x3) & a_mad(s2) & Theme(s2,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_man(x1) & a_angry(s1) & Theme(s1,x1))