A brown and black dog on a leash is sniffed by a black and white dog.
One dog is sniffing another dog.
Dog on a leash is sniffed by another dog which is clearly understandable
exists e1 s1 s2 s3 s4 x1 x2 x3.(Actor(e1,x3) & n_dog(x3) & a_white(s4) & Theme(s4,x3) & a_black(s3) & Theme(s3,x3) & Theme(e1,x1) & v_sniff(e1) & on(x1,x2) & n_leash(x2) & n_dog(x1) & a_black(s2) & Theme(s2,x1) & a_brown(s1) & Theme(s1,x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_sniff(e1) & n_dog(x2) & -(x2 = x1) & n_dog(x1) & n_dog(x1) & card_eq_1(x1))