メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.693041163567 35.2383113620463, 136.69008252 35.2386051333706, 136.689671575066 35.2360330520951, 136.689646677166 35.2358136542383, 136.690585914352 35.2357174132741, 136.69197405384 35.2355774991325, 136.693045839789 35.2354690813286, 136.693038760618 35.2360462466411, 136.693025406438 35.2376684038179, 136.693041163567 35.2383113620463)) ^^http://www.opengis.net/ont/geosparql#wktLiteral