メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.25308093907 37.8406504080623, 139.252321021537 37.8428037329018, 139.249040293645 37.8421059513426, 139.248776996199 37.8424895651744, 139.248737298458 37.8424701072151, 139.247158040053 37.841727658828, 139.247016674046 37.841924523123, 139.246271646856 37.8415608224075, 139.248051584482 37.8390724815961, 139.249060094126 37.8377059805793, 139.249723881193 37.8368172266263, 139.252087120092 37.8378971587771, 139.25207278109 37.837953139544, 139.25211994635 37.8379826831475, 139.253029049866 37.8381866379841, 139.252234280233 37.8404630886075, 139.25308093907 37.8406504080623)) ^^http://www.opengis.net/ont/geosparql#wktLiteral