Teacher: You are given a paragraph (Passage), a question (Question) and two answer options (Option1 and Option2). Your task is to choose the correct answer to the question based on the passage. Answer of the question cannot be found directly from the passage, it is indirectly indicated in the passage. Do not answer with words other than the two options, and do not answer with option titles(e.g. "option1" or "1" are not acceptable answers.)
Teacher: Now, understand the problem? If you are still confused, see the following example:
Passage: Omelettes make a great breakfast , and I enjoy making them because they are very easy to cook . First , I get the eggs out and begin cracking them on the side of the bowl and dumping them into the bowl . I normally use two eggs whites and one whole egg to cut the calories . I add some salt and pepper to the mix for flavor . I pour the mixture into the hot frying pan . I make sure that I add some vegetable oil to the pan before I add the eggs though because I do n't want them to stick . As this occurs , I add some cheese or vegetable to the center of the egg mixture . Really , almost any type of cheese or vegetable makes a good omelette . I then flip one side of the omelette over on to itself to seal in the contents in the middle . It is then ready to serve ! Question: Where is the omelette being browned? Option1: In the pan Option2: On the street
Solution: In the pan
Reason: As mentioned in the passage that I pour the mixture into the hot frying pan; it is clear that omelette is being browned in pan only. Also, there is nothing related to street mention in the passage.

Now, solve this instance: Passage: When I went on vacation last year with my parents , we took a trip on a train for part of it . We picked the route we wanted to take to go visit my uncle , and had everything ready the day before , such as our suitcases . When the day arrived for us to go , my dad drove us to the train station where we parked in a designated lot , since we would be returning to the same train station . We had some extra time , so we wandered around and found a little gift shop where we could buy souvenirs . When it was time to board our train , we walked through the station to get to the correct area . There were long hallways to get there , and then we went up a concrete pathway to where the train was outside . We had to give the ticket taker our tickets so she could verify we were getting on the right train . We stored our luggage and prepared for the train to begin its journey . Once it was time to leave , we watched out the windows at all the passing scenery . After awhile , we all started doing our own thing like reading or playing cards to pass the time . Question: When did they and their parents purchase their train tickets? Option1: After arriving at uncle's home Option2: Prior to boarding train
Student:
Prior to boarding train