a man is wakeboarding in a lake
the man is on his couch
A man wakeboarding on a lake is not sitting or lying on his couch.
exists e1 x1 x2.(in(e1,x2) & n_lake(x2) & Actor(e1,x1) & v_wakeboard(e1) & n_man(x1))
exists p1 x1 x2.(n_couch(x2) & of(x2,x1) & n_male(x1) & n_man(x1) & on(x1,x2))