A surfer on a yellow surfboard is splashing up water onto another surfer.
A person on a boat sleeping.
A person cannot splash up water while they are sleeping.
exists e1 s1 s2 x1 x2 x3 x4.(onto(e1,x4) & n_surfer(x4) & -(x4 = x1) & n_surfer(x1) & n_surfer(x1) & a_up(s2) & Manner(e1,s2) & Theme(e1,x3) & Actor(e1,x1) & v_splash(e1) & n_water(x3) & on(x1,x2) & n_surfboard(x2) & a_yellow(s1) & Theme(s1,x2))
exists x1 x2 x3.(a_topic(x1) & on(x1,x2) & n_sleeping(x2) & of(x2,x3) & n_boat(x3) & n_person(x1))