Task: Question Answering
Input (English): It's great to be back , but I'd forgotten how bad the air quality is here . I hadn't had allergies at all in NM , but now my eyes are itchy and I'm sneezing and sniffling most of the time . Bleh . Things Iris has said lately : I : " Having dog . " 
Question: Why have I forgotten how bad the air quality is ?
Output (English): Because I've been away for a while .