Definition: In this task, you will be presented with a text and a pronoun. You should write the name that the pronoun refers to. Position of the pronoun in the text is showed within two "_"s.
Input: The late 1950s to mid-1970s is viewed as the ``golden age'' for New Zealand in the sport and saw Denny Hulme crowned as World Drivers' Championship in 1967. New Zealand drivers have been absent from Formula One events from 1984 with Mike Thackwell to 2017 when Brendon Hartley is expected to make _his_ F1 debut in the 2017 United States Grand Prix. <sep>, Pronoun: his

Brendon Hartley