Refer to the input text as context and select the correct relationship between 'Syriza' and 'Alexis Tsipras' from the available options.
Options: chairperson, brand, developer, product/material produced

Those who want to accept the bailout terms and turn the clock back 12 months will be disappointed — if Greece votes "Yes" Alexis Tsipras will still be Prime Minister, and Syriza currently has no plausible opposition.
chairperson