_:b57956903 "C3669041" . _:b57956903 "T169" . _:b57956902 "1"^^ . _:b57956904 _:b57956905 . _:b57956902 . _:b57956902 . _:b57956905 . _:b57956902 _:b57956904 . _:b57956904 . _:b57956902 . _:b57956905 "infiltration" . _:b57956902 _:b57956903 .