Take context from the input text and decide on the accurate relationship between 'Syriza' and 'Alexis Tsipras' from the options provided.
Options: founded by, stock exchange, chairperson, legal form

He views the forthcoming election as a positive because it would enable Alexis Tsipras to separate from the more radical elements of the Syriza party and be in a position to implement necessary reforms like work rule changes and pension modification.
chairperson