A man on a couch reading a book.
A man is watching television.
A man is either reading a book or watching television, not both at the same time.
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_read(e1) & n_book(x4) & (x2 = x3) & n_couch(x2) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_television(x2) & n_man(x1))