question: If at least one person is standing in front of a row of identical-looking red vending machines.
#1 return person 
#2 return vending machines 
#3 return #2 that are red 
#4 return #3 that are identical-looking 
#5 return row of #4 
#6 return #1 standing in  front of #5 
#7 return the  number of  #6 
#8 return if  #7 is at least one