TASK DEFINITION: In this task you're given a question and you have to paraphrase the question to create the output question while retaining the meaning of the original question.
PROBLEM: What does this Ruby code do?

SOLUTION: What is the Ruby code for registration?

PROBLEM: Which one is a better desktop environment, lxde or xfce?

SOLUTION: What is the best Linux desktop environment?

PROBLEM: How many valence electrons does sulfur have?

SOLUTION:
How many valence electrons does oxygen have?