K-1 rental loss broken into multiple parts?

I have a K-1 from a real estate partnership. Box 2 = -1478. Box 20 Code Z = STMT.

 

Then below the form itself it says the following:

======= BEGIN QUOTE =================

Section 199A information, Box 20, Code Z

 

Rent - Investment in Subsidiary - <SUB NAME>

- Rental loss = -578

 

PASSTHROUGH - <SUB NAME> LLV [same SUB NAME as above, with LLV added]

EIN: <this EIN is different from K-1 EIN>

- Rental loss = -900

- Unadjusted Basis of Assests = 6521

======== END QUOTE ============

 

Note that the two losses add up to -1478, which is the number in Box 2. This loss will be suspended.

 

I also a further Schedule of Activities, where the two a listed separately with -578 listed with Code 2, and -900 is listed with Code 8. I have not found any information about this schedule and the codes.

 

Now my question:

TT is asking whether the Section 199A income is from the partnership that generated the K-1, or from another business.

 

Which option should I pick?? On the one hand, only -900 is from another business with its own EIN. On the other hand, the -578 seems to be from the same business, just listed differently!

 

Thanks!