Jack Straw, the Foreign Secretary, will meet his Brazilian counterpart, Celso Amorim, in London today.
Jack Straw has no other counterparts.
He will meet with his Brazilian counterpart which makes it incorrect.
( z1 have :polarity - :ARG0 ( z2 person :name ( z3 name :op "Jack" :op "Straw" ) ) :ARG1 ( z4 counterpart :mod ( z5 other ) ) )