*UK May PSNB Rises To GBP 20 Bln, Consensus GBP 14.9 Bln

*UK May Input Prices Down 1.5% On Month Vs. +0.1% In Apr, Consensus -0.5%

*UK May Input Prices Rise 0.5% Annually Vs. 4.2% In Apr, Consensus 1.2%

*UK May Output Prices Fall 0.5% M-o-M Vs. -0.2% In Apr, Consensus -0.1%

*UK May Output Prices Up 2.9% Annually Vs. 5.2% In Apr, Consensus 3.6%