Universe data set issue

Hi all,

Iam working on BOBJ 3.1.I have created a Universe based on two fact tables and some master data tables which are coming as target tables from Data Federator.

I need a report on employee information.

So created a join between 0Employee master data table and 0employee from one fact table to Z_employee in another fact table.

Say EX : Master data table(A) - 0employee

              Fact table(B) - 0employee

              Fact table(C) - Zemployee

A-->B I did equi join

B-->C  I did full outer join(i.e by checking the both outer joins check box)

Now my requirement is I need all the employees existing in both the fact tables.

Ex : if A has got 10 employees and B has got 15 employees

then I need all 25 employees in my report.

currently Iam getting only the employees from either of the tables.

Please help to achieve the requirement

Thanks

Nagar