An upside-down child above a trampoline.
A child plays on the trampoline while his brother watches.
the upside-down child need not be playing and his brother need not watch him.
exists s1 x1 x2.(a_topic(x1) & above(x1,x2) & n_trampoline(x2) & n_child(x1) & a_upside-down(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4.(n_watch(x3) & of(x3,x4) & n_brother(x4) & of(x3,x2) & n_male(x2) & n_trampoline(x2) & while(e1,x3) & on(e1,x2) & Actor(e1,x1) & v_play(e1) & n_child(x1))