command /gm [<text>] [<player>]:
	permission: minecraft.command.gamemode
	permission message: &c実行権限がありません。
	executable by: console and player
	trigger:
		if arg 1 is "0" or "s" or "survival":
			if arg 2 is set:
				set arg-2's gamemode to survival
			if arg 2 is not set:
				set player's gamemode to survival
		if arg 1 is "1" or "c" or "creative":
			if arg 2 is set:
				set arg-2's gamemode to creative
			if arg 2 is not set:
				set player's gamemode to creative
		if arg 1 is "2" or "a" or "adventure":
			if arg 2 is set:
				set arg-2's gamemode to adventure
			if arg 2 is not set:
				set player's gamemode to adventure
		if arg 1 is "3" or "sp" or "spectator":
			if arg 2 is set:
				set arg-2's gamemode to spectator
			if arg 2 is not set:
				set player's gamemode to spectator
		if arg 1 is not set:
			if arg 2 is not set:
				send "&c使用法:/gm <モード> [プレイヤー]"