Task: Question Answering
Input (English): Context: Party was quite good last night , no major disasters . I got kidnaped by some of my step brothers friends and got carried off down the hill . Also on the way to the train station , my mate Ian was giving me a piggy back . unfortunately he tripped up and i went flying too , he was quite upset about it , but he ended up much worse off than i did , with a huge gash in his knee . 
Question: Why did my mate Ian give me a piggy back ?
Output (English): Because it was a fun thing to do .