how to determine if a contact belongs to a bank or a branch in Oracle eBS

Hi ,

In Oracle eBS, I created a contact for an internal bank branch(%Payables Manager% responsibility, setup -> payment -> bank and branches, search a branch, then created a contact). When I checked table hz_relationships in database, the relationship is between the contact and the bank, and I didn't see any relationship between the contact and branch. But the contact do be created from the branch level and when I checked in the page, the contact can only be seen from the branch level.

Does anyone know how is the relationship between the contact and the branch got when displaying in the page, which table stores such information?