Greek Prime Minister Alexis Tsipras had urged his fellow members of parliament to vote 'yes' and survived despite up to 42 rebel votes or abstentions from his Syriza party's MPs, including a 'no' vote from former finance minister Yannis Varoufakis.
Refer to the input text as context and select the correct relationship between 'Syriza' and 'Alexis Tsipras' from the available options.
Options: business division, chairperson, publisher, chief executive officer