A group of people sitting on top of a hillside.
People sit on a hill and watch planes flying in formation overhead.
sitting on top of a hillside does not imply that they watch planes flying in formation overhead.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & on(e1,x4) & of(x4,x5) & n_hillside(x5) & n_top(x4) & Actor(e1,x3) & v_sit(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
exists e2 e3 e1 x1 x2 x3 x4 x5 x6 x7.(Theme(e3,x4) & Actor(e3,x3) & v_watch(e3) & in(e2,x6) & n_overhead(x6) & of(x6,x7) & n_formation(x7) & Actor(e2,x5) & v_fly(e2) & (x4 = x5) & n_plane(x4) & n_people(x3) & on(e1,x2) & n_hill(x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1))