Refer to the input text as context and select the correct relationship between 'Independent Greeks' and 'Panos Kammenos' from the available options.
Options: original broadcaster, chairperson, position held, chief executive officer

Left-wing Syriza party leader Alexis Tsipras, left, waves to his supporters as leader of the right-wing Independent Greeks party Panos Kammenos makes the victory sign after his general election victory, at Syriza's party’s main electoral center in Athens, Sunday, Sept. 20, 2015.
chairperson