Even Germany's Wolfgang Schaeuble, who last month floated a Greek exit from the euro as Tsipras hesitated to agree terms with fellow leaders, sounded upbeat, if still wary of a new tone in Athens that caused an angry split in Tsipras' leftist party, with nearly a third of Syriza lawmakers rebelling in parliament.
Refer to the input text as context and select the correct relationship between 'Syriza' and 'Athens' from the available options.
Options: brand, headquarters location, platform, chairperson