input: [Time] 7:15am to 9:30am (depending on location) [Description] At various points on the race course, teams of 1, 2 or 3 volunteers will be needed to ensure runners stay on the correct course and support police as needed. The Course Marshals also provide encouragement and support to runners. Bring your noise-makers and cheering voice! [Opportunity] 
output: Course Marshals