Romano Prodi will meet the US President George Bush in his capacity as president of the European commission.
George Bush will greet Romano Prodi when they come into contact.
Leaders always greet each other such as everyone else does when they meet with someone else.
( z1 greet :ARG0 ( z2 person :name ( z3 name :op "George" :op "Bush" ) ) :ARG1 ( z4 person :name ( z5 name :op "Romano" :op "Prodi" ) ) :time ( z6 contact :ARG0 z2 :ARG1 z4 ) )