POLYGON((21.58245102602163 37.52595202045342,21.71531693178335 37.57657919682785,21.834449927388818 37.454171336343904,21.881141821920068 37.39023262244459,21.682014624654443 37.37413709745758,21.58245102602163 37.52595202045342))