[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 only post links to actual news sources, no tabloid sites, etc
2: No NSFW content
3: No hate speech, bigotry, propaganda, etc

[EOR]
[BOC]
&gt; antacids 

[German fact](http://www.reddit.com/r/GermanFacts/): The "colloquial" name for formic acid is Ameisensäure which translates to ant-acid, since it was gained by [distillating large numbers of ants](http://en.wikipedia.org/wiki/Formic_acid#History).
[EOC]
safe
0
[END]

Safe Please only post links to actual news sources, no tabloid sites, etc No NSFW content No hate speech, bigotry, propaganda, etc