Teacher: You are given a question title. You need to classify it into one of the 10 topics: 0 - 'Society & Culture', 1 - 'Science & Mathematics', 2 - 'Health', 3 - 'Education & Reference', 4 - 'Computers & Internet', 5 - 'Sports', 6 - 'Business & Finance', 7 - 'Entertainment & Music', 8 - 'Family & Relationships', 9 - 'Politics & Government'.
Teacher: Now, understand the problem? If you are still confused, see the following example:
What's the best way to clean a keyboard?
Solution: 4
Reason: keyboard is used with a computer. Thus the category "Computers & Internet" is correctly classified.

Now, solve this instance: Why is showing a female nipple not allowed but a male nipple is allowed?
Student:
0