Schedule K-1 Box 14

My 2 siblings and I have a Family Trust.  The only thing in the trust is real estate.  We are renting out a building on the property and that is the only income for the trust.  I have generated the Schedule K's and in Box 14 it shows I* (the letter) and then STMT.  Apparently there should be some kind "attached statement with additional information".  I don't know what information they want.  There is a figure in box 7 (Net rental real estate income), Box 9 A and Box 12.  Any suggestions? 

 

Thank you!

 

Mary