_:vb2517816 "53.634094 6.36828654.506287 8.341309"^^ . _:vb2517816 . _:vb2517816 "POLYGON((6.368286 54.506287,8.341309 54.506287,8.341309 53.634094,6.368286 53.634094,6.368286 54.506287))"^^ .