A man is checking on crabs in a glass dish.
the man is looking at crabs
For the man to be able to check on the crabs, he has to look at them.
exists e1 x1 x2 x3 x4.(on(e1,x2) & in(x2,x3) & n_dish(x3) & of(x3,x4) & n_glass(x4) & n_crab(x2) & Actor(e1,x1) & v_check(e1) & n_man(x1))
exists e1 x1 x2.(n_man(x1) & at(e1,x2) & n_crab(x2) & Actor(e1,x1) & v_look(e1))