Only thing I'd say about this is that here we are referring to a definite article, the Room, in question so Room is not so unreasonable I think, note also that for a named/unnamed room the results would be something like:
Exits for Room "The Tar Valon Road" / Exits for Room Id 12345
Compare this to:
Exits for room "The Tar Valon Road" / Exits for room Id 12345
Admittedly the Mud I tend to play capitalises non-trivial words in room names but for this usage case I would defend 'R'. 8-)