[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 THINK CAREFULLY BEFORE POSTING HERE.

[EOR]
[BOC]
Seems like [2015](http://www.magicicada.org/about/brood_pages/broods.php) will be the year I hear the [squeeing](https://youtu.be/mah26og11ms?t=17s) sound all summer long.
[EOC]
safe
0
[END]

Safe PLEASE THINK CAREFULLY BEFORE POSTING HERE.