Four men playing instruments.
Four sad men playing instruments.
The four men playing music are not necessarily sad.
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_instrument(x3) & (x1 = x2) & n_man(x1) & card_eq_4(x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_instrument(x3) & (x1 = x2) & n_man(x1) & a_sad(s1) & Theme(s1,x1) & card_eq_4(x1))