Task: Question Answering
Input (English): Passage: Yesterday I was so excited for my trip to Florida from Boston . I woke up early to make sure that I was at the airport in plenty of time to check in . I called a cab and took the cab from my apartment to the airport .  I ran my credit card through the machine and hit the appropriate buttons to check in . I decided to keep my assigned seats and to check my bag in with the airlines . When I was finished a tag printed that I attached to my bag , this way I could identify my bag when I arrived in Florida .  I went through security and made it to my gate in plenty of time to board the plane to Florida . Question: When did they walk over to the security gate? Option1: After they checked their bag. Option2: After they got out of the cab.
Output (English): After they checked their bag.