Baseball

1. Fans

1.1. Supports the teams

1.2. Fills the Stadiums

2. Teams

2.1. MLB

2.2. College

2.3. High school

3. Owner

4. Leads the team to victory

5. Coaches

5.1. Guides the team

5.2. Teaches the team

6. Players

6.1. Catcher

6.2. Pitcher

6.3. infielders

6.4. Outfielders