Task: Question Generation
Input (English): #1 return international adult matches 
#2 return the  fields of #1 
#3 return lengths in  meters of #2 
#4 return the  highest of #3 
#5 return the  lowest of #3 
#6 return the  difference of #4 and  #5
Output (English): How many meters difference is there between the minimum and maximum lengths of the field for international adult matches?