<http://schema.org/headline>
"\u77ED\u3044\u722A\u3067\u3082\u5927\u4E08\u592B\u3002\u7740\u7269\u306B\u5408\u3046\u30CD\u30A4\u30EB\u306F\u3001\u3084\u3063\u3071\u308A\u300E \u548C\u67C4 \u300F \u3067\u3057\u3087\u266A"^^<http://www.w3.org/2001/XMLSchema#string>
<http://itnail.jp/articles/CcASuGDb>