Categorize the comment on the basis of sexual explicitness. If the comment is sexually explicit output Yes, otherwise output No.

Example Input: Stay off of porn sites.
Example Output: Yes

Example Input: Fair enough - I'm not a doc (at least not that kind), and I'm not arguing that physicians aren't highly trained. I also don't completely agree with your analysis, some of your figures, and some of your conclusions (it's OK, on many points I do agree with you). With that... if you will just hand me that erlenmeyer and step away from the homogenizer, I'll go back to my molecules, mice, and math.
Example Output: Yes

Example Input: And once again, as in dozens of your posts when you boast of your hate for Obama,
it's just one man's opinion. Where is the link to back it up? Obama hates America?
Complete BS. It's clear where the hate comes from and it's not Barack Obama.
Example Output:
Yes