Task: Question Generation
Input (English): #1 return non-gang robberies 
#2 return kidnappings 
#3 return arson cases 
#4 return number of  #1 
#5 return number of  #2 
#6 return number of  #3 
#7 return sum of #5 and  #6 
#8 return the  difference of #4 and  #7
Output (English): How many more non-gang robberies were there compared to kidnappings and arson cases combined?