user: Question: Brett Kimmorley, who was chosen for the clive churchill medal belonged to what team?
Columns: ['Season', 'Grand FinalDate', 'WinningTeam', 'Score', 'LosingTeam', 'Location', 'GF Attendance', 'Clive Churchill Medal']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: [1998.0, '27 September 1998', 'Brisbane Broncos (4)', '38-12', 'Canterbury Bulldogs', 'Sydney Football Stadium , Sydney (11)', 40857.0, 'Gorden Tallis']
SQL:

assistant: SELECT "WinningTeam" FROM "Table" WHERE "Clive Churchill Medal" = 'Brett Kimmorley';