A waterskier is air-borne above the water near a background of tall palm trees.
the skier is not good at it
He may be good or not good
exists s1 s2 x1 x2 x3 x4 x5.(n_water(x2) & above(s1,x2) & near(x2,x3) & of(x3,x4) & n_tree(x4) & of(x4,x5) & n_palm(x5) & a_tall(s2) & Theme(s2,x4) & n_background(x3) & Theme(s1,x1) & a_air-borne(s1) & n_waterskier(x1))
exists x1.(n_thing(x1) & n_skier(x1) & -exists s1.(at(s1,x1) & Theme(s1,x1) & a_good(s1)))