<http://schema.org/position>
"1"^^<http://www.w3.org/2001/XMLSchema#integer>
<http://product.rakuten.co.jp/product/Panasonic+NI-WL703-P/694988a7e8b0c65224124733a3ebc6f0/summary/1/?sc=2&l2-id=pdt_filter_asuraku>