A band plays a concert for fans.
Musicians play music for screaming fans.
Just because a band plays a concert for fans doesn't mean its for screaming fans
exists e1 x1 x2 x3.(for(e1,x3) & n_fan(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_concert(x2) & n_band(x1))
exists e1 e2 x1 x2 x3 x4.(ne_nam_musicians(x1) & Theme(e2,x2) & Actor(e2,x1) & v_play(e2) & Theme(e1,x4) & Actor(e1,x3) & v_scream(e1) & n_fan(x4) & (x2 = x3) & n_music(x2))