<http://schema.org/headline>
"Scala\u3067\u95A2\u6570\u8133\u3092\u4F5C\u308D\u3046\uFF01\uFF1A\u65B0\u520A\u30D4\u30C3\u30AF\u30A2\u30C3\u30D7"^^<http://www.w3.org/2001/XMLSchema#string>
<http://gihyo.jp/book/pickup/2010/0081>