Unadjusted Basis of Assets v. UBIA of Qualified Property

UBIA is the same as 'unadjusted basis of assets'.  This figure is routinely used in the calculation for the Qualified Business Income Deduction.

Might this just be listed as "Unadjusted Basis"?

Same thing. Would typically be recorded in Box 20 Code Z of the K-1.

Thanks.  But for my recent K-1, the line in Box 20 Code Z had "STMT" in it instead of a dollar value.  And I had nothing called Statement A with the K-1 docs.  But did have a couple of pages called "Schedule of Activities" which had some of the wording in it that I am attempting to use, for "Net rental real estate income (loss)" and "Unadjusted basis of assets". 

that could be it but the only way to make sure is to contact the partnership.   sometimes a statement will be on the back of the k-1 or a supplemental list for everything for box 20.  since there are multiple approaches the only way to make sure is as stated.