メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.468876958588 35.5841979147263, 138.468279869999 35.5842415762377, 138.468112458759 35.5823673497505, 138.46865847007 35.5819676363342, 138.46870607128 35.5819327887044, 138.471059295972 35.5802749687088, 138.472897498143 35.5789071063846, 138.472954991148 35.5788468040038, 138.474537502582 35.5738702652764, 138.474745499577 35.5731644098839, 138.474827304327 35.5728867932748, 138.474839584706 35.5728347894228, 138.474936509359 35.5724243270325, 138.475065066535 35.5711952655719, 138.475054270393 35.5709513265843, 138.475192529535 35.5711049755794, 138.47532031693 35.5712284819874, 138.475437550087 35.5713395922664, 138.475641544641 35.571529202903, 138.475862075674 35.5717192732358, 138.476056052791 35.5718318409894, 138.476241248819 35.5719071535686, 138.476490536899 35.5720075474893, 138.47671259801 35.5721000138404, 138.476873220899 35.5721882100096, 138.477014519341 35.5723050612024, 138.477136505267 35.5724391280275, 138.477205820254 35.5725731856642, 138.477220697952 35.5727229729561, 138.477822157046 35.5756015875075, 138.478478088476 35.5785088285002, 138.478855181261 35.5801215675828, 138.477809556762 35.5802153012943, 138.478140556751 35.5835596875628, 138.477137913311 35.5836412401149, 138.474676895181 35.5838072255562, 138.469773920908 35.5841419240331, 138.468876958588 35.5841979147263)) ^^http://www.opengis.net/ont/geosparql#wktLiteral