Task: Question Answering
Input (English): Problem: 5 n + 2 > 12 and 7 n - 5 < 23 ; n must be between which numbers ? 
Options: a ) 1 and 8 , b ) 2 and 4 , c ) 0 and 9 , d ) 2 and 7 , e ) 2 and 9
Output (English): b