Centre-left voters in Italy have chosen Romano Prodi as the candidate who will challenge Prime Minister Silvio Berlusconi in next year's election. The former European Commission president and Italian PM won 73.5% of votes, according to partial results of primaries.
Romano Prodi was determined to be the most favored challenger to the current prime minister.
Romano Prodi won 73.5% of the primary electorate, so he definitely was the most favored candidate.  The system was likely confused by the term "favored"
( z1 determined :ARG0 ( z2 person :name ( z3 name :op "Romano" :op "Prodi" ) ) :ARG1 ( z4 challenge :ARG0 z2 :ARG1 ( z5 person :ARG0-of ( z6 have-org-role :ARG2 ( z7 minister :mod ( z8 prime ) ) :time ( z9 current ) ) ) :ARG1-of ( z10 have-degree :ARG2 ( z11 favor :ARG1 z4 ) :ARG3 ( z12 most ) ) ) )