a group of dogs running outside down a dirt trail.
A group of dogs are friends.
WE DON'T KNOW THAT THEY ARE FRIENDS.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & down(e1,x4) & n_trail(x4) & of(x4,x5) & n_dirt(x5) & a_outside(s1) & Manner(e1,s1) & Actor(e1,x3) & v_run(e1) & (x1 = x3) & of(x1,x2) & n_dog(x2) & n_group(x1))
exists p1 x1 x2.(exists x3.((x1 = x3) & n_friend(x3)) & of(x1,x2) & n_dog(x2) & n_group(x1))