A group of kids standing outside.
Kids are standing outside waiting for the bus.
Standing outside does not necessarily mean waiting for the bus.
exists e1 s1 x1 x2 x3.(a_topic(x1) & of(x1,x2) & a_outside(s1) & Manner(e1,s1) & Actor(e1,x3) & v_stand(e1) & (x2 = x3) & n_kid(x2) & n_group(x1))
exists e2 e1 s1 x1 x2.(n_bus(x2) & for(e1,e2) & for(e2,x2) & Actor(e2,x1) & v_wait(e2) & a_outside(s1) & Manner(e1,s1) & Actor(e1,x1) & v_stand(e1) & n_kid(x1))