_:b61526476 "2017-12-31"^^ . _:b61526477 _:b61526478 . _:b61526474 _:b61526477 . _:b61526474 _:b61526475 . _:b61526474 . _:b61526478 "2017-01-01"^^ . _:b61526475 _:b61526476 .