_:b56693218 _:b56693220 . _:b56693221 . _:b56693218 _:b56693219 . _:b56693218 . _:b56693218 . _:b56693219 "T081" . _:b56693219 "C2986734" . _:b56693220 _:b56693221 . _:b56693221 "efficiency" . _:b56693218 . _:b56693220 . _:b56693218 "0.82"^^ .