Task: Question Answering
Input (English): Problem: i . x + 2 y + 3 z = 2 ii . x + y - z = 0 iii . 2 x + 2 y - z = 1 what is the value of y in the system above ? 
Options: a ) - 2 , b ) - 1 , c ) 0 , d ) 1 , e ) 2
Output (English): a