SRID=4326;POLYGON((113.526 22.185,113.535 22.212,113.553 22.221,113.571 22.203,113.607 22.203,113.634 22.167,113.634 22.113,113.607 22.077,113.571 22.077,113.571 22.095,113.544 22.113,113.553 22.149,113.526 22.185))