Aug. 30, 2018 2018-XF2685 Omaha Public Power District, Neb.'s series 2015A electric system revenue bonds 2018-XF2686 Denver City&County, Colo.'s series 2018A-1 dedicated tax revenue bonds Citibank N.A. FMSbonds Inc. Citigroup Global Markets Inc. S&P Global Ratings assigned the above-mentioned ratings to the floater and residual receipts (collectively the receipts), reflecting S&P Global Ratings' opinion of the likelihood the trust will have sufficient assets to pay timely interest and full principal when due on the receipts. Trust assets include all distributions of principal; interest; and premiums, if any, from the underlying securities and the liquidity facility, which is in place to support tender payments on the floaters. The long-term component of our rating on the floaters reflects the ratings