Task: Question Answering
Input (English): Passage: It was my one of my roommate 's birthdays , and the rest of my friends that I live with and I decided to throw him a surprise party . First , we figured out where my roommate would be while we were decorating our house for the party so that he would n't know anything was going on . We decided to decorate everything while he was at work so he would n't see . We decided to get a piñata , some fun water balloon games for our backyard , and of course , a big cake for everyone to share . On the big day , we decorated our house and once my roommate got there , everyone hid in their places to jump out and surprise him . We yelled `` surprise ! '' and my roommate was so shocked ! He was really happy that we had thought of him on his birthday and he loved everything we had planned for his party . Question: What was a great day? Option1: Their birthday party Option2: Their roommate's birthday party
Output (English): Their roommate's birthday party