A little boy is playing on a playground rocking toy.
An elderly man is pointing at a flying saucer.
either a little boy is playing or an elderly man is pointing
exists e1 e2 s1 x1 x2 x3.(on(e1,x2) & n_toy(x2) & Actor(e2,x2) & v_rock(e2) & of(x2,x3) & n_playground(x3) & Actor(e1,x1) & v_play(e1) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists e1 e2 s1 x1 x2.(at(e1,x2) & n_saucer(x2) & Actor(e2,x2) & v_fly(e2) & Actor(e1,x1) & v_point(e1) & n_man(x1) & a_elderly(s1) & Theme(s1,x1))