Xpath for a reference selector in the 2nd step process

Hi,

I have 3 reference selectors in a page. The 1 & 2 reference selectors are independent(No dependency). The 3rd reference selector should show the values based on both 1 & 2 values . Can someone help me out with the Xpath.  

What I have done is:

I have created few records for all the 3 entities. I have taken another  entity. Created association with all the 3 entities. Retrieved each value one by one and created few records with some combinations. Now I'm trying to pull the value based on this combination.