A woman sunbathes on a rooftop while reading a book.
A woman is sitting in the sun.
Sun baths on a roof top implies she is sitting in the sun.
exists e2 e1 x1 x2 x3.(while(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_read(e2) & n_book(x3) & on(e1,x2) & n_rooftop(x2) & Actor(e1,x1) & v_sunbathe(e1) & n_woman(x1))
exists e1 x1 x2.(n_sun(x2) & in(e1,x2) & Actor(e1,x1) & v_sit(e1) & n_woman(x1))