A child is observing a chicken in a cage.
A child is looking at a man carry a cage with a monkey inside past him
there is not necessarily any man, or anyone carrying a cage, or any monkey, or anyone walking past.
exists e1 x1 x2 x3.(in(e1,x3) & n_cage(x3) & Theme(e1,x2) & Actor(e1,x1) & v_observe(e1) & n_chicken(x2) & n_child(x1))
exists e1 e2 s1 x1 x2 x3 x4 x5 x6.(at(e1,x2) & with(e2,x5) & inside(x5,x6) & n_he(x6) & a_past(s1) & Theme(s1,x6) & n_monkey(x5) & Theme(e2,x4) & Actor(e2,x3) & v_carry(e2) & n_cage(x4) & (x2 = x3) & n_man(x2) & Actor(e1,x1) & v_look(e1) & n_child(x1))