An old woman looks at food in a display case.
The old lady is shopping for food in the market.
Looking at food does not imply she is shopping. She is not necessarily in the market.
exists e1 s1 x1 x2 x3 x4.(in(e1,x3) & n_case(x3) & of(x3,x4) & n_display(x4) & at(e1,x2) & n_food(x2) & Actor(e1,x1) & v_look(e1) & n_woman(x1) & a_old(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(n_market(x3) & n_lady(x1) & a_old(s1) & Theme(s1,x1) & in(e1,x3) & for(e1,x2) & n_food(x2) & Actor(e1,x1) & v_shop(e1))