Two dogs are sniffing something in the rocks.
The dogs follow a scent.
The dogs are sniffing because they are following a scent.
exists e1 x1 x2 x3.(n_rock(x3) & Theme(e1,x2) & Actor(e1,x1) & v_sniff(e1) & in(x2,x3) & n_thing(x2) & n_dog(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_dog(x1) & Theme(e1,x2) & Actor(e1,x1) & v_follow(e1) & n_scent(x2))