Task: Question Answering
Input (English): Passage: Today is my sister 's birthday party ! We wake up early to take my sister to school , and then we come back home to bake her a cake . Mother and I make a big mess when we stir the batter . Frosting the cake is even more messy ! Then we blow up lots an lots of balloons . Mother and I hang them on the ceiling . The house looks really different ! We set the cake in the living room next to a box with sticks in it . Mother said those are candles . When my sister comes home from school , we light all of the candles and say , `` Surprise ! '' My sister forgot all about her birthday today ! She really liked our cake . Question: Who did they throw the confetti at? Option1: The author's sister. Option2: The author's grandmother.
Output (English): The author's sister.