Teacher:In this task, you are given a public comment from online platforms. You are expected to classify the comment into two classes: sexual-explicit and non-sexual-explicit. A comment is considered sexual-explicit if it explicitly portrays sexual matters.
Teacher: Now, understand the problem? Solve this instance: Comment: "Masturbation is not evil per se, contraceptives are a reasonable tool for family planning, premarital sexual experience is common .... there really are people who by their nature are sexually attracted to people of the same sex."

Theft is common; so is murder. Demonstrate the reasoning behind your assertions. Because a human behaviour is common does not make it moral. Desire is not the yardstick of moral conduct.
Student:
Sexual-explicit