????? ? ??? ??? ?? ??? ??? ? ?? ???(Platform)??, ?? ??? ?? ??(Accommodation Alternatives)? ?? ???(Overview Procedure)?? ?????. ????? ????? ?? ???(Advantages and disadvantages)? ?? eleven?? ???? ???(Function)? ??(Gives)? ?????????.????? ?? ?? (1) ??? ?? ?? ?? ????? ??(Lodge)? ??? ???(Hostel), ???(Apartment), ??(Pension), ?? ??(Private Household)?? ?