HELP. Urgent help about passwords and keys

Hello steemians so hear i am doing my daily research about steemit I just realize that there are 5 different passwords I spent about 2 hours trying to figured where to get the other 4 passwords from
Owner key
Active key
Posting key
Memo key
I know that i only have 4 keys here what is the 5th one ? and can someone or everyone please help me out.

Thanks you 😁