question: If an image does not show exactly two people dressed for an occasion.
#1 return people 
#2 return #1 that are dressed for each  an  occasion 
#3 return images 
#4 return number of  #2 for each  #3 
#5 return #3 where  #4 is equal to  two 
#6 return number of  #5 
#7 return if  #6 is equal to  zero