Task: Question Answering
Input (English): Passage: One day after work , I needed to put gas in my car , so I went to a gas station near my house . At that time of day , the gas station was crowded and most of the pumps were full . I pulled my car up to one of the empty pumps and went inside to pay . I had to wait in line . When it was my turn at the register , I gave the cashier a fifty dollar bill and told him I wanted to pay for twenty dollars of gas at pump number three . The cashier counted out thirty dollars in change and gave me the money . I put the money back in my wallet and thanked him . Then I went outside to pump my gas . Question: When was it a pleasant transaction? Option1: while pumping the gas Option2: When at the gas station.
Output (English): When at the gas station.