In the context of the input sentence, determine the relationship between 'Syriza' and 'Athens'.
Options: distribution format, headquarters location, position held, creator

Nobel prize winning economist Paul Krugman, a vocal supporter of Athens in its long-running bailout saga, said Sunday that he "may have overestimated the competence of the Greek government," suggesting Syriza staged the showdown without having a Plan B.
headquarters location