メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.048617570478 36.0787407711218, 138.048891568386 36.0788045575305, 138.049646241544 36.0789829649869, 138.05006502949 36.0790669091504, 138.050411680393 36.0791527484547, 138.051018071169 36.079346858411, 138.051551619512 36.0794312174775, 138.051605014627 36.0794379115761, 138.052077566474 36.0794570162035, 138.052291162703 36.079457812865, 138.052390083808 36.0794365111283, 138.052369669838 36.0794568365688, 138.05233372798 36.079492658532, 138.052039017358 36.0801266858384, 138.051572532387 36.0811599900698, 138.051497660453 36.0811848743385, 138.050790350085 36.0813445752433, 138.050493580766 36.0814084905583, 138.049953319465 36.0815560333641, 138.049719225747 36.081619170432, 138.049313255293 36.0817264955702, 138.048367151826 36.0819653809954, 138.04696922394 36.0823336649509, 138.046951390629 36.0822519536975, 138.047091966406 36.0817904953291, 138.047420477176 36.0808368279269, 138.047743696295 36.079904658611, 138.047902291553 36.0794308039195, 138.048080616365 36.0788962566361, 138.048167549286 36.0786360036203, 138.048617570478 36.0787407711218)) ^^http://www.opengis.net/ont/geosparql#wktLiteral