Task: Question Answering
Input (English): Problem: a man can row downstream at 35 kmph and upstream at 25 kmph . find the speed of the man in still water and the speed of stream respectively ? 
Options: a ) 35 , 3 , b ) 25 , 5 , c ) 35 , 4 , d ) 5 , 30 , e ) 30 , 5
Output (English): e