A man is waterskiing on one ski.
He is having fun on the water.
Waterskiing can be done on water.
exists e1 x1 x2.(on(e1,x2) & n_ski(x2) & card_eq_1(x2) & Actor(e1,x1) & v_waterskie(e1) & n_man(x1))
exists e1 x1 x2 x3.(n_water(x3) & n_male(x1) & on(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_fun(x2))