Task: Question Answering
Input (English): Problem: the hypotenuse of a right triangle is 2 centimeters more than the longer side of the triangle . the shorter side of the triangle is 7 centimeters less than the longer side . find the length of the hypotenuse . 
Options: a ) 17 , b ) 18 , c ) 19 , d ) 20 , e ) 21
Output (English): a