question: What are the products with the maximum page size eqal to A4 or a pages per minute color less than 5?
#1 return products 
#2 return maximum page sizes of #1 
#3 return #1 where #2 is  A4 
#4 return pages per minute color of #1 
#5 return #1 where #4 is  lower than 5 
#6 return #3 or  #5