Greek PM Tsipras under pressure over covert Syriza drachma plan reports 34 minutes ago Greek Prime Minister Alexis Tsipras in Athens, Greece July 24, 2015.
Utilize the input text as a context reference, choose the right relationship between 'Syriza' and 'Alexis Tsipras' from the options.
Options: owner of, distributed by, chairperson, industry