Kids are playing in an oceanic tidal flat.
The tide flats are being visited by some kids.
For the kids to be playing in the ocean, they must visit them.
exists e1 s1 s2 x1 x2.(in(e1,x2) & n_flat(x2) & a_tidal(s2) & Theme(s2,x2) & a_oceanic(s1) & Theme(s1,x2) & Actor(e1,x1) & v_play(e1) & n_kid(x1))
exists e1 x1 x2 x3.(n_flat(x1) & of(x1,x2) & n_tide(x2) & Actor(e1,x3) & n_kid(x3) & Theme(e1,x1) & v_visit(e1))