Two kids running over a sand dune.
Two children are taking naps in the sun.
One cannot be taking naps and running simultaneously
exists e1 x1 x2 x3 x4.(a_topic(x1) & over(e1,x3) & n_dune(x3) & of(x3,x4) & n_sand(x4) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_kid(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_sun(x3) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_nap(x2) & n_child(x1) & card_eq_2(x1))