_:b17547 . _:b17546 . _:b17541 . _:b17540 _:b17541 . _:b17549 . _:b17549 _:b17546 . _:b17540 . _:b17546 _:b17544 . _:b17547 _:b17549 . _:b17541 . _:b17539 _:b17547 . _:b17544 _:b17540 . _:b17539 . _:b17544 .