メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.393403663896 43.7341825146424, 142.393126896168 43.7347014244338, 142.393576978762 43.7348378093019, 142.393574686008 43.7348394332573, 142.393241874902 43.7350515218696, 142.393112566422 43.7351268633229, 142.392576894427 43.7354312765023, 142.392272290261 43.7356043739679, 142.391756987241 43.7359026253976, 142.391296663788 43.7361690518502, 142.391128972964 43.736266107734, 142.390820254345 43.7364468248866, 142.390493900896 43.7361612249733, 142.390431603349 43.7361057405422, 142.390019271322 43.7357385039027, 142.389586965435 43.7353434560647, 142.38910814494 43.734873342877, 142.390058653639 43.7343534170544, 142.390924891841 43.733828802578, 142.391365186036 43.7335648235343, 142.393403663896 43.7341825146424)) ^^http://www.opengis.net/ont/geosparql#wktLiteral