_:b57973031 "T169" . _:b57973032 _:b57973033 . _:b57973031 "C1522492" . _:b57973030 _:b57973032 . _:b57973030 "1"^^ . _:b57973033 . _:b57973033 "formation" . _:b57973032 . _:b57973030 . _:b57973030 . _:b57973030 _:b57973031 . _:b57973030 .