A girl laughing on a water slide.
A kid is having fun at the water park
A water slide can be someplace other than a water park.
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x3) & n_slide(x3) & of(x3,x4) & n_water(x4) & Actor(e1,x2) & v_laugh(e1) & (x1 = x2) & n_girl(x1))
exists e1 x1 x2 x3 x4.(n_park(x3) & of(x3,x4) & n_water(x4) & at(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_fun(x2) & n_kid(x1))