A surfer digs his board deep in the water to cut the wave he is riding.
A guy is surfing.
A surfer whose acronym is he is a guy.  Surfing is a rephrasing of when a surfer digs his board deep in the water to cut the wave he is riding.
exists e1 p1 x1 x2 x3 x4 x5 x6.(n_wave(x6) & n_water(x5) & Topic(e1,p1) & exists e2 e3 x7.(Theme(e3,x6) & Actor(e3,x1) & v_cut(e3) & Theme(e2,x7) & Actor(e2,x1) & v_ride(e2) & (x6 = x7)) & n_male(x1) & n_male(x1) & in(e1,x5) & Theme(e1,x3) & Actor(e1,x2) & v_dig(e1) & n_deep(x3) & of(x3,x4) & n_board(x4) & of(x3,x1) & n_surfer(x2) & n_surfer(x1))
exists e1 x1.(Actor(e1,x1) & v_surf(e1) & n_guy(x1))