Task: Question Answering
Input (English): Passage: Today I had to cancel a party . We were supposed to have a dinner party tomorrow , but I had to cancel because of a family event . My dad 's birthday is tomorrow and they decided to have a last minute family gathering . It was partially my fault anyways because I forgot what day his birthday was ! It was really necessary for me to cancel this party . I called everyone that I invited and personally told them the reasoning why I had to cancel , and also rescheduled the party for next Saturday . It turned out that canceling the party was the best situation for everyone involved . I 'm glad that no one was upset with me for canceling it ! Question: What did they cancel? Option1: Their dad's birthday Option2: The dinner party
Output (English): The dinner party