メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.658104088793 35.4367780999531, 136.658249457252 35.4367787128162, 136.658618371549 35.4357796213508, 136.659317280133 35.4357840048247, 136.659293459227 35.4367902909453, 136.659314652368 35.437183902528, 136.658796058008 35.4371903096723, 136.658799017383 35.4372806318039, 136.658266158625 35.4373314442867, 136.658224814595 35.4370782292968, 136.658104088793 35.4367780999531)) ^^http://www.opengis.net/ont/geosparql#wktLiteral