A band is outside playing cylindrical instruments.
A band plays heavy rock on guitars.
A band is playing cylindrical instruments. A band does not play heavy rock on guitars.
exists e1 s1 s2 x1 x2.(for(s1,e1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_instrument(x2) & a_cylindrical(s2) & Theme(s2,x2) & Theme(s1,x1) & a_outside(s1) & n_band(x1))
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & on(x2,x3) & n_guitar(x3) & n_rock(x2) & a_heavy(s1) & Theme(s1,x2) & n_band(x1))