What is the relationship between 'Syriza' and 'Athens' in the context of the input sentence.
Options: brand, creator, headquarters location, parent organization

“Greece is obviously working to secure an immediate deal, but it must be a deal that opens a window out of the current crisis,” Energy Minister Panagiotis Lafazanis, a hard-line Syriza member, said at a conference in Athens Thursday.
headquarters location