There are four NF types. Two in Beta. Two in Delta. Each NF-type has (supposedly) two subtypes. Intuitive and Ethical. That means effectively there are eight variations of NFs. How can you separate between these eight types? What are the "trademarks" of each type? Can you come up with a simple rule set that separates these eight types from each other?

ENFj (ethical)
ENFj (intuitive)

INFp (ethical)
INFp (intuitive)

INFj (ethical)
INFj (intuitive)

ENFp (ethical)
ENFp (intuitive)