A band is outside playing cylindrical instruments.
A band is playing outside on round instruments.
A band is playing instruments that look round from the top but are cylindrical in nature.
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 x1 x2 x3 x4.(on(e1,x3) & n_instrument(x3) & of(x3,x4) & n_round(x4) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_outside(x2) & n_band(x1))