small child sitting on rock alone.
The child is standing with his friends.
The child is either sitting or standing, and is either alone or with friends.
exists e1 s1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & r_alone(x3) & n_rock(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_child(x1) & a_small(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_friend(x2) & of(x2,x1) & n_male(x1) & n_child(x1) & with(e1,x2) & Actor(e1,x1) & v_stand(e1))