Question: The 1971 Brownlow Medal was the 44th year the award was presented to the player adjudged the fairest and best player during the Victorian Football League (VFL) home and away season, which former Australian rules footballer, who represented St Kilda and Richmond in the VFL, of the Richmond Football Club won the medal by polling twenty-one votes during the 1971 VFL season?
Sentence (from "Ian Stewart (Australian rules footballer)"): He later coached South Melbourne and Carlton and was an administrator at St Kilda.
Relevant evidence: No