A lot of surfers stand out in the ocean with their boards waiting on a wave.
Surfers are in the ocean waiting for a killer wave.
Waiting for a wave does not imply waiting for a killer wave.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6.(n_board(x4) & of(x4,x3) & n_thing(x3) & n_ocean(x3) & in(e1,x3) & with(x3,x4) & on(e2,x6) & n_wave(x6) & Actor(e2,x5) & v_wait(e2) & (x4 = x5) & a_out(s1) & Manner(e1,s1) & Actor(e1,x1) & v_stand(e1) & of(x1,x2) & n_surfer(x2) & n_lot(x1))
exists e1 p1 x1 x2 x3 x4.(n_ocean(x4) & for(p1,e1) & for(e1,x2) & n_wave(x2) & of(x2,x3) & n_killer(x3) & Actor(e1,x1) & v_wait(e1) & in(x1,x4) & n_surfer(x1))