Greek Prime Minister Alexis Tsipras on Tuesday battled to hold his ruling Syriza party together as opposition mounted to a shocking new bailout deal that requires Athens to push through draconian reforms within two days.
Utilize the input text as a context reference, choose the right relationship between 'Syriza' and 'Alexis Tsipras' from the options.
Options: director/manager, employer, manufacturer, chairperson