_:b17143 _:b17140 . _:b17131 . _:b17142 _:b17143 . _:b17137 _:b17142 . _:b17128 _:b17137 . _:b17137 . _:b17140 _:b17131 . _:b17128 . _:b17131 . _:b17140 . _:b17142 . _:b17143 .