Task: Question Answering
Input (English): Context: I found " My Smart Puppy " to be the best book out of a large selection we bought and to this day I am still regularly referring to it , both for our training and to help friends . Cara has a big brother , a Russian Blue cat by the name of Tindy . They get along really well and love to wrestle , it looks scary to visitors but they know each other 's limits !. 
Question: Why did I buy a book ?
Output (English): My dog was hard to train.