A person in green surfing a wave.
A surfer is surfing a huge wave while a crowd watches.
A person surfing a wave not does not particularly suggest while a crowd watches.
exists e1 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_surf(e1) & n_wave(x4) & (x2 = x3) & n_green(x2) & n_person(x1))
exists e1 p1 s1 x1 x2.(exists e2 x3.(Actor(e2,x3) & v_watch(e2) & n_crowd(x3)) & while(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_surf(e1) & n_wave(x2) & a_huge(s1) & Theme(s1,x2) & n_surfer(x1))