Task: Question Answering
Input (English): One day I was thinking about my grandma who lives in Florida.  I thought it would be nice to write her a letter.  I sat down at the table and took out a pen and paper.  I wrote to her telling her all about the things going on in my life.  I told her about how I went to my friend's birthday party and how I was looking forward to my vacation in August.  I told her how my friends and I planned a trip to Washington D.C. for vacation.  I signed the letter and folded it up.  I carefully placed the letter into the envelope and addressed it to my grandma.  I put a stamp on the letter and I walked down to the post office.  I gave my letter to the postman and he put it in the mail to go out the next day.  I bet Grandma will be excited to get my letter! 
Question: Who was the letter going to?
Output (English): Their grandmother