ATHENS, Sept 20 The leftist Syriza party of Alexis Tsipras has won 35.07 percent of the vote in Greece's national election, according to data on the Interior Ministry website based on 10.16 percent of votes counted.
What is the relationship between 'Syriza' and 'Alexis Tsipras' in the context of the input sentence.
Options: publisher, location of formation, chairperson, platform