A small group of adults and children are standing on a dirt trail on a hill.
The group of dogs are standing on the dirt.
A group of adults and children is generally assumed to be comprised of human beings, which cannot simultaneously be dogs, which are animals.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7.(on(e1,x7) & n_hill(x7) & on(e1,x5) & n_trail(x5) & of(x5,x6) & n_dirt(x6) & Actor(e1,x1) & v_stand(e1) & of(x1,x2) & subset_of(x4,x2) & n_child(x4) & subset_of(x3,x2) & n_adult(x3) & n_group(x1) & a_small(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(n_dirt(x3) & n_group(x1) & on(e1,x3) & Actor(e1,x1) & v_stand(e1) & of(x1,x2) & n_dog(x2))