Task: Question Answering
Input (English): Passage: Last week when I took a trip into the city I had to ride on the underground to get from one place to another . There are stations all around the city , so I had to find the one that was closest to my destination so I would n't have to walk too far after I got off . When I got to the station , I walked down the stairs that led into the underground and went over to the kiosk so I could pay my fee . I had to wait with a group of people for the train to arrive , but it did n't take very long . When the train got to my station the doors slowly slid open and everyone walked inside . We found our seats and waited patiently for the train to start moving . I did n't take long . Soon , a nice voice came over the intercom announcing my destination was the next stop , so I stood up and waited to exit the train . Question: When did they pay their fee? Option1: When they entered the underground and went over to the kiosk. Option2: When they boarded the train
Output (English): When they entered the underground and went over to the kiosk.