Parallel/MultiLevel Hierarchy?!

Hello!
First of all...sorry for my bad english now and in the future ;)

I´m using Analysis Service for about 1 month and now I have a big problem.
I have the folllowing relational Database table:

Child | Parent
X A
X B
X C
A D
D E
....
in my DataView I Added this table and put a relationship from Child (which is the key column?!) to Parent. Then i created a new Dimension and Analysis Service put Parent automaticly to 'Parent'
But now when i proceed the dimension it seems that Analysis Service only put X as a Child of one Parent and not to the other?!

I hope my question/problem is clear enough and you know what i mean?! :)

How can i create such a Parallel Hierarchy where one Child has more than one Parent?