Task: Question Answering
Input (English): Problem: five women can do a work in ten days . 7 men can complete the same work in 5 days . what is the ratio between the capacity of a man and a woman ? 
Options: a ) 10 : 7 , b ) 11 : 10 , c ) 2 : 3 , d ) 3 : 2 , e ) none of these
Output (English): a