Categorize the comment on the basis of obscenity. If the comment is obscene output Yes, otherwise output No.
One example: Will this remove the property from city taxes?
Solution is here: No
Explanation: The comment here is just a normal question without any indecent words and categorized as not obscene. Hence, it is a positive example

Now, solve this: Kc, really? Before you make an opinion, you should base it on facts. Otherwise you look uneducated and foolish.

The fact is, for the last 25 years the birthrate among teens has been steadily dropping. In 1991 it was 61.8 per 100,000 15 to 19 year olds. In 2014 it was 24.2 per 100,000. That is a significant drop of almost 2/3s. Studies have shown the sex education is the biggest factor in this decline. Places which have limited or no sex ed have higher birth rates among teen mothers.

http://www.hhs.gov/ash/oah/adolescent-health-topics/reproductive-health/teen-pregnancy/trends.html#
Solution:
Yes