A black dog and a brown and white dog running in the grass.
Fido and Rex were brothers and best friends.
Just because the dogs are running in the grass doesn't mean they are brothers or best friends.
exists e1 s1 s2 s3 s4 x1 x2 x3 x4.(n_grass(x4) & a_topic(s1) & subset_of(x2,s1) & in(e1,x4) & Actor(e1,x3) & v_run(e1) & (x2 = x3) & n_dog(x2) & a_white(s4) & Theme(s4,x2) & a_brown(s3) & Theme(s3,x2) & subset_of(x1,s1) & n_dog(x1) & a_black(s2) & Theme(s2,x1))
exists p1 x1 x2 x3.(ne_per_rex(x3) & ne_per_fido(x2) & exists s1 x4 x5 x6.((x1 = x4) & subset_of(x6,x4) & n_friend(x6) & r_most(s1) & a_good(s1) & Theme(s1,x6) & subset_of(x5,x4) & n_brother(x5)) & subset_of(x3,x1) & subset_of(x2,x1))