Greece's government on Tuesday submitted tough bailout terms demanded by eurozone creditors to parliament, as Prime Minister Alexis Tsipras battled for support for the draconian reforms from his ruling anti-austerity Syriza party.
What is the relationship between 'Syriza' and 'Alexis Tsipras' in the context of the input sentence.
Options: business division, chairperson, location of formation, director/manager