A man is jumping on the beach.
The weather is nice
The weather is not necessarily nice.
exists e1 x1 x2.(n_beach(x2) & on(e1,x2) & Actor(e1,x1) & v_jump(e1) & n_man(x1))
exists s1 x1.(n_weather(x1) & Theme(s1,x1) & a_nice(s1))