Cyclists are cycling through laps.
Children swim in a pool.
If someone is cycling, then they cannot swim in a pool.
exists e1 x1 x2.(through(e1,x2) & n_lap(x2) & Actor(e1,x1) & v_cycle(e1) & n_cyclist(x1))
exists x1 x2 x3.(a_topic(x1) & in(x1,x3) & n_pool(x3) & n_swim(x1) & (x1 = x2) & ne_nam_children(x2))