 Complete the following phrase:  The 2016 Sepang GP2 and GP3 Series rounds were a pair of motor races that were held on 1 and 2 October 2016 at the Sepang International Circuit in Malaysia as part of the GP2 Series and GP3 Series. It was the tenth round of the 2016 GP2 Series and the eighth round of the 2016 GP3 Series. The race weekend supported the 