メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.838797357052 43.8042903947922, 143.840038024817 43.8043817178175, 143.840003093652 43.8046859673379, 143.839978558629 43.8049101546964, 143.839931029449 43.8053470254493, 143.839859711598 43.805787726928, 143.839831279845 43.80620517414, 143.839777601154 43.8066409008534, 143.839726696104 43.8070530479002, 143.838456104751 43.8069925174059, 143.838513135569 43.8065582558529, 143.838524689206 43.8064629877828, 143.838567115231 43.8061261303114, 143.838593962875 43.8059120722063, 143.838620732758 43.8056989305653, 143.838667970212 43.8053237665661, 143.838737253659 43.8047733061406, 143.83875816885 43.8046064305388, 143.838797357052 43.8042903947922)) ^^http://www.opengis.net/ont/geosparql#wktLiteral