Sorry, I had to stop you. Cause I caught the number dice you were rolling.
Now, to clear up the confusion with the step system. I have broken it even further down so it is easier.
Okay, Is the last number you generated a prime number? If I recall, it is a "9"
The way it goes in order to get your sub elements is.
9 = Fire (Generated)
Sub Elements you can roll for are even numbers 2, 4 and 6
Because you rolled a 6, an even number. That will be your sub element.
Now, for your second sub element. You only get once chance at this. Roll the dice again.
If you land an even, 1, 3 or an 5 . You get what ever that sub element is.
BUT!
If you land a 2, 4 or an 6. There is no secondary sub element.
In conclusion! The numbers fall either prime, odd, prime. OR, odd, prime, odd.
I hope this helps.