Grandfather and grandson walking hand in hand looking for fun.
A grandfather and grandson are walking.
A grandfather and grandson are walking is another way to say grandfather and grandson walking.
exists e1 e2 x1 x2 x3 x4 x5 x6.(ne_nam_grandson(x3) & ne_nam_grandfather(x2) & for(e1,e2) & for(e2,x6) & n_fun(x6) & Actor(e2,x1) & v_look(e2) & in(e1,x5) & n_hand(x5) & Theme(e1,x4) & Actor(e1,x1) & v_walk(e1) & n_hand(x4) & subset_of(x3,x1) & subset_of(x2,x1))
exists e1 x1 x2 x3.(Actor(e1,x1) & v_walk(e1) & n_grandson(x3) & n_grandfather(x2) & subset_of(x3,x1) & subset_of(x2,x1))