human
What are the basic rules for playing a game of badminton?
assistant
The basic rules for playing a game of badminton are as follows: 
1. A badminton match is played until one team has won two out of three sets.
2. Each set is played until one team has achieved 21 points.
3. A point is scored when one team fails to return the shuttlecock over the net.
4. A rally must begin with a service, in which the shuttlecock needs to pass over the net and within the boundaries of the diagonally opposite service court.
5. The shuttlecock must be hit by the server's side of the racquet and the game will end if the shuttlecock lands outside the boundaries of the court, hits the server's own side, hits a roof or any other fixture or fails to pass over the net.
6. The server rotates clockwise at the end of each set.