A surfer is riding a wave.
The ocean is too cold for anyone to go surfing.
You can either ride a wave or stay out of the water because it is too cold. You can't do both.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_wave(x2) & n_surfer(x1))
exists s1 x1.(n_ocean(x1) & all x2.(n_person(x2) -> exists p1.(for(s1,x2) & Topic(x2,p1) & exists e1 x3.(Theme(e1,x3) & Actor(e1,x2) & v_go(e1) & n_surfing(x3)))) & r_too(s1) & Theme(s1,x1) & a_cold(s1))