 Complete the following phrase:  Sapporo and Obihiro were named as the host cities on January 31, 2011, as the sole bidding cities. The hosting contract was signed by Tsunekazu Takeda, the president of the Japanese Olympic Committee. It will be the third time that Sapporo will host the event and fourth time in Japan. Previously the city held the two first editions of the Games in 1986 and 