He met U.S. President, George W. Bush, in Washington and British Prime Minister, Tony Blair, in London.
He met George W. Bush before he met Tony Blair.
( z1 meet :ARG0 ( z2 he ) :ARG1 ( z3 person :name ( z4 name :op "George" :op "W." :op "Bush" ) ) :time ( z5 before :op ( z6 meet :ARG0 z2 :ARG1 ( z7 person :name ( z8 name :op "Tony" :op "Blair" ) ) ) ) )