A man doing a trick on a wakeboard
A man outside.
Doing a trick on a wakeboard implies being outside.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_do(e1) & on(x3,x4) & n_wakeboard(x4) & n_trick(x3) & (x1 = x2) & n_man(x1))
exists x1 x2.(a_topic(x1) & n_outside(x1) & of(x1,x2) & n_man(x2))