メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.509282458991 40.5052821936202, 141.509534332698 40.505452182505, 141.509749418635 40.5056119739044, 141.509901668608 40.5057332600169, 141.510069743535 40.5058561768146, 141.510183391778 40.5059518670375, 141.510352800978 40.5060928579059, 141.510752650588 40.506512949864, 141.510914784877 40.5067184676332, 141.511236071671 40.5071717349013, 141.511565396886 40.5077500531599, 141.510845398903 40.5078259824778, 141.510396395437 40.5078864544505, 141.509385639659 40.508098679945, 141.508876683665 40.5082250720335, 141.508080744092 40.5084495003778, 141.507312647536 40.5086795639603, 141.506889899391 40.5088401327433, 141.506265562327 40.5090481367866, 141.505682168239 40.5092903035117, 141.505333558896 40.5087609102701, 141.505210705965 40.5085506529589, 141.505147300947 40.508380999562, 141.505130312564 40.508295049639, 141.505087384647 40.5081590836993, 141.505041839347 40.5078992281966, 141.505037757557 40.507757934944, 141.505044106591 40.507451659121, 141.505066359092 40.5072610305934, 141.505141663163 40.5070106748903, 141.505214930363 40.5068197491069, 141.505313567405 40.5066215354623, 141.50548292081 40.506378828691, 141.505908359964 40.5057592231426, 141.506489313276 40.5049524690561, 141.507243901836 40.5039048758103, 141.50778419714 40.5042795125277, 141.509282458991 40.5052821936202)) ^^http://www.opengis.net/ont/geosparql#wktLiteral