Romano Prodi will meet the US President George Bush in his capacity as president of the European commission.
president bush is president of the European commission.

Romano Prodi is the president of the commision which make it incorrect
( z1 have-org-role :ARG0 ( z2 person :name ( z3 name :op "Bush" ) :ARG0-of ( z4 have-org-role :ARG2 ( z5 president ) ) ) :ARG1 ( z6 organization :name ( z7 name :op "European" :op "Commission" ) ) :ARG2 ( z8 president ) )