A man on a white waterskiing ramp on a lake
A guy is playing sports with his friends.
Just because, the man is waterskiing does not mean the man is playing sports.
exists s1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x2) & on(x2,x4) & n_lake(x4) & n_ramp(x2) & of(x2,x3) & n_waterskiing(x3) & a_white(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2 x3.(with(e1,x3) & n_friend(x3) & of(x3,x1) & n_male(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_sport(x2) & n_guy(x1))