Task: Question Answering
Input (English): Problem: the ratio of the volumes of two cubes is 125 : 216 . what is the ratio of their total surface areas ? 
Options: a ) 13 : 18 , b ) 8 : 12 , c ) 1 : 12 , d ) 8 : 17 , e ) 1 : 11
Output (English): a