メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.09641583152 36.7017970278726, 137.096452402566 36.7017223471393, 137.096851228162 36.7015169928177, 137.097476670113 36.7020203331196, 137.097099213099 36.7026520078056, 137.096941285792 36.7030449223156, 137.096935994802 36.7030580857022, 137.096485261584 36.7030433220521, 137.095961902623 36.7030542128166, 137.095530995082 36.7030445272183, 137.095383366894 36.7021328240391, 137.095356384033 36.7018587889757, 137.095349853558 36.7015573064977, 137.09641583152 36.7017970278726)) ^^http://www.opengis.net/ont/geosparql#wktLiteral