A group of children running.
A couple is at a Christmas parade.
It is either a group or a couple. Running or at a parade.
exists e1 x1 x2 x3.(a_topic(x1) & of(x1,x2) & Actor(e1,x3) & v_run(e1) & (x2 = x3) & n_child(x2) & n_group(x1))
exists p1 x1.(exists x2 x3.(at(x1,x2) & n_parade(x2) & (x2 = x3) & ne_tim_christmas(x3)) & n_couple(x1))