In this task, you're given a context passage, followed by a question that needs to be answered. Based on the paragraph, you must write unambiguous answers to the questions and your answer must refer to a specific phrase from the paragraph. If multiple answers seem to exist, write the answer that is the most plausible.

Let me give you an example: Tracy slept awkwardly on their new bed and was having some pain, so Tracy cracked her neck.
Question: What did Tracy do with her neck?
The answer to this example can be: crack her neck
Here is why: The output phrase perfectly answers the question and is explicitly mentioned in the passage as well.

OK. solve this:
I work as a painter for a living. Sometimes people want wallpaper which I do not like, but the customer is always right. First I put a coat of primer on the wall so the paper will apply nice and smooth. Then I have to cut and measure the paper. I have a special machine that lets me roll the paper out to the length I need and then cuts it in straight lines. Then I have to put glue on the paper. I apply it to the back of the paper then stick it on the wall as evenly as I can. I use a paint knife to smooth out any bubbles in the paper. Then I wipe off any excess glue with a wet sponge. Now it's time for the next piece. I repeat the process and make sure the pattern lines up. I repeat until all done.
Question: Why are they repapering?
Answer:
Because their customer prefers it to paint