A child is looking at an exhibit.
A child looks.
If someone looks then they are looking
exists e1 x1 x2.(at(e1,x2) & n_exhibit(x2) & Actor(e1,x1) & v_look(e1) & n_child(x1))
exists e1 x1.(Actor(e1,x1) & v_look(e1) & n_child(x1))