_:b61539149 "2006-01-01"^^ . _:b61539148 _:b61539149 . _:b61539151 "2006-12-31"^^ . _:b61539147 _:b61539148 . _:b61539150 _:b61539151 . _:b61539146 _:b61539147 . _:b61539147 _:b61539150 . _:b61539147 .