Kids playing in the ocean.
Some children taking a swim on the sea.
Kids and children a similar descriptions of each other. Both sea and ocean are large bodies of water.
exists e1 x1 x2 x3.(n_ocean(x3) & a_topic(x1) & in(e1,x3) & Actor(e1,x2) & v_play(e1) & (x1 = x2) & n_kid(x1))
exists e1 x1 x2 x3 x4.(n_sea(x4) & a_topic(x1) & on(e1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_take(e1) & n_swim(x3) & (x1 = x2) & n_child(x1))