Rules:
1.a principle or regulation governing conduct, action, procedure, arrangement, etc.: the rules of chess.
2.the code of regulations observed by a religious order or congregation: the Franciscan rule.
3.the customary or normal circumstance, occurrence, manner, practice, quality, etc.: the rule rather than the exception.
4.control, government, or dominion: under the rule of a dictator.
5.tenure or conduct of reign or office: during the rule of George III.
I didnt know that SET have rules O.O can you tell me some of them O.O