A woman writing while standing by men.
The woman is sad.
Not all woman are sad.
exists e2 e1 x1 x2 x3.(a_topic(x1) & while(e1,e2) & by(e2,x3) & n_man(x3) & Actor(e2,x2) & v_stand(e2) & Actor(e1,x2) & v_write(e1) & (x1 = x2) & n_woman(x1))
exists s1 x1.(n_woman(x1) & Theme(s1,x1) & a_sad(s1))