Two dogs are sniffing something in the rocks.
A cat and her kitten inspecting a rock.
The subject is either dogs or cats/kittens. Also, while similar, the act of sniffing and the act of inspecting are not necessarily the same behavior. Finally, "rocks" implies a pile or collection of multiple rocks, whereas the singular "rock" could refer to a standalone object.
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 s1 x1 x2 x3 x4.(a_topic(s1) & subset_of(x2,s1) & Theme(e1,x4) & Actor(e1,x3) & v_inspect(e1) & n_rock(x4) & (x2 = x3) & n_kitten(x2) & of(x2,x1) & n_female(x1) & subset_of(x1,s1) & n_cat(x1))