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.
One example is below.
Q: 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?
A: crack her neck
Rationale: The output phrase perfectly answers the question and is explicitly mentioned in the passage as well.
Q: In fact , so much so , that the lines contained large chunks of yeast and protein . And it wasn't just my unfiltered - Belgian - beer line . The lines for Stella Artois and Miller Lite , if not chunky , were also filthy . I told the owner that he needed to clean his draft beer lines , and pronto .
Question: Why did the lines contain large chunks of yeast and protein ?
A:
Because the lines were dirty .