Hierarchy Table

I transfered a WBS Element hierarchy from R/3 into infoobjct 0WBS_ELEMT. I'm now just needing to verify that all nodes have been transferred since the user claims the hierarchy has 140,000 nodes.

I'm seeing 3 tables but confused.

/BI0/HWBS_ELEMT has a tiny # of records

/BI0/KWBS_ELEMT has a tiny # of records

/BI0/IWBS_ELEMT has a large # of records

Could some please explain which table should have the hierarchy records in them.

Thanks