An elderly woman walks with a cane and a shopping bag.
A grandmother going home after shopping.
Not every elderly woman is a grandmother. Carrying a shopping bag does not necessarily imply she is going home after shopping.
exists e1 s1 x1 x2 x3 x4 x5.(with(e1,x2) & subset_of(x4,x2) & n_bag(x4) & of(x4,x5) & n_shopping(x5) & subset_of(x3,x2) & n_cane(x3) & Actor(e1,x1) & v_walk(e1) & n_woman(x1) & a_elderly(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & after(e1,x4) & n_shopping(x4) & Time(e1,x3) & n_home(x3) & Actor(e1,x2) & v_go(e1) & (x1 = x2) & n_grandmother(x1))