What is the relationship between Syriza and Alexis Tsipras in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

Associated Press ATHENS, Greece (AP) - The official projection of final results in Greece's early election shows the left-wing Syriza party of former Prime Minister Alexis Tsipras winning with 35.5 percent, but falling short of enough parliamentary seats to form a government on its own.

Answer: chairperson