_:b668505863 . _:b668505861 . _:b668505862 . _:b668505862 . _:b668505862 . _:b668505863 . _:b668505861 . _:b668505861 . _:b668505861 . _:b668505863 _:b668505862 . _:b668505863 . _:b668505862 _:b668505861 .