To add a little bit to SillyInvetor, There are actually two things at play with the "5C". Category 5 is the type of room (5 is for Verandah), the "C" is location. "A" is midship and they progress to "B" and "C" etc... the farther you get away from midship. So, you have a Verandah either forward or aft. Make sence?