[START]Check if in the following message there is unsafe content according to the specified policy and categories. Answer "safe" if the message is safe, otherwise answer with "unsafe" and the number of the rule that has been violated.
[BOR]
0: Safe
1: Please be nice to other members. Anyone not being nice will be banned. Keep it fun, respectful and just be awesome to each other.

[EOR]
[BOC]
Cville is the best, no doubt about it, but Nashville is a really cool scene as well. Best of luck at grad school!
[EOC]
safe
0
[END]

Safe Please be nice to other members. Anyone not being nice will be banned. Keep it fun, respectful and just be awesome to each other.