Task: Question Answering
Input (English): Last night I picked up Mary Elizabeth and Hannah Ruth at Kristina Fife's house in Provo . She had been caring for them since Tuesday morning . We went to Grandma Horton's house where Grandpa did some drawing with ME and HR crawled all over . Grandma fixed us some grilled cheese sandwiches and peaches . 
Question: Why did grandma fix them grilled cheese sandwiches ?
Output (English): Because it's a nice thing to do .