Crowd watching airplane and helicopter in the sky.
The sky has to crafts in it
The crowd cannot simultaneously be watching "to crafts" and an airplane and helicopter
exists e1 x1 x2 x3 x4 x5.(n_sky(x5) & in(e1,x5) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_helicopter(x4) & n_airplane(x3) & subset_of(x4,x2) & subset_of(x3,x2) & n_crowd(x1))
exists e1 x1 x2.(n_thing(x1) & n_sky(x1) & to(e1,x2) & in(x2,x1) & n_craft(x2) & Actor(e1,x1) & v_have(e1))