Task: Question Answering
Input (English): Passage: Yesterday I went to a sauna with my friend . It was a Korean spa that is very popular . We checked in at the desk and confirmed our reservation .  We were given robes and slippers to change in .  The robes were very comfortable and cozy . We then relaxed at the spa and went into the hot tub . It was very refreshing .  Afterwards , we checked out the masseuse to get a foot massage .  We ended up falling asleep at the sauna and taking a quick nap . When we woke up , we were hungry so we got a bite to eat at their indoor Korean restaurant . We bought some Korean short ribs , rice , and some beef cubes .  We really enjoyed ourselves and plan to return go back again soon . Question: When did they change in the locker room? Option1: after they arrived Option2: after they left
Output (English): after they arrived