Children sit together in a circle.
Children sitting.
To sit together the children must be sitting.
exists e1 s1 x1 x2.(in(e1,x2) & n_circle(x2) & a_together(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1) & n_child(x1))
exists e1 x1 x2.(a_topic(x1) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_child(x1))