Question: This pair of GP2 Series motor races supported a Formula One motor race won by what driver?
Sentence (from "2014 Bahrain GP2 Series round"): The 2014 Bahrain GP2 Series round was a pair of motor races held on 6 and 7 April 2014 at the Bahrain International Circuit in Sakhir, Bahrain as part of the GP2 Series.
Relevant evidence: No