if (!(sender instanceof BlockCommandSender)) {
                String message = "";
                for (String b : args) {
                    message += b + " ";
                }
                Player[] onlinePlayers = Bukkit.getServer().getOnlinePlayers();
                for (Player p : onlinePlayers) {
                    p.sendMessage(message);
                }
            } else {
                BlockCommandSender senderCmd = (BlockCommandSender) sender;
                Block senderBlock = senderCmd.getBlock();

                if (senderBlock.getWorld().equals("Mansion")) {
                    String message = "";
                    for (String b : args) {
                        message += b + " ";
                    }
                    List<Player> mansionPlayers = Bukkit.getWorld("Mansion")
                            .getPlayers();
                    for (Player p : mansionPlayers) {
                        p.sendMessage(message);
                    }
                } else if (senderBlock.getWorld().equals("Razul")) {
                    String message = "";
                    for (String b : args) {
                        message += b + " ";
                    }
                    List<Player> mansionPlayers = Bukkit.getWorld("Razul")
                            .getPlayers();
                    for (Player p : mansionPlayers) {
                        p.sendMessage(message);
                    }
                } else {
                    //command block sender in a world not specified above
                    String message = "";
                    for (String b : args) {
                        message += b + " ";
                    }
                    Player[] onlinePlayers = Bukkit.getServer().getOnlinePlayers();
                    for (Player p : onlinePlayers) {
                        p.sendMessage(message);
                    }
                }

            }