Task: Question Answering
Input (English): Problem: the compound ratio of 5 : 6 , 3 : 2 and 6 : 5 ? 
Options: a ) 1 : 1 , b ) 1 : 87 , c ) 1 : 6 , d ) 3 : 2 , e ) 1 : 2
Output (English): d