Task: Question Answering
Input (English): Context: The black cloud 's clinic is full of complex patients who need three referrals apiece . The white cloud 's clinic is full of patients who do n't show up . What finally got me to believe in the power of the black cloud was one resident I worked with last year . One month she was working in the clinic but covering call in the PICU every fourth night ( as I am doing this month . ). 
Question: Why are you cover call in the PICU this month ?
Output (English): The schedule for that job rotates monthly and new people have the responsibility of doing it monthly.