A man rides a surfboard over a wave, the nose of the board pointing downward.
A man riding a surfboard over a wave outside.
when a  man riding a surfboard over a wave outside that don't imply to be the nose of the board pointing downward
exists e1 e2 s1 x1 x2 x3 x4 x5 x6.(n_board(x5) & n_nose(x4) & Theme(e2,x2) & Actor(e2,x1) & v_ride(e2) & over(x2,x3) & rel(x3,x4) & a_downward(s1) & Manner(e1,s1) & Actor(e1,x6) & v_point(e1) & (x4 = x6) & of(x4,x5) & n_wave(x3) & n_surfboard(x2) & n_man(x1))
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & Time(e1,x5) & n_outside(x5) & over(e1,x4) & n_wave(x4) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_surfboard(x3) & (x1 = x2) & n_man(x1))