<http://schema.org/description>
"Awesome and thorough information Serge! I learned a lot.\n\u0412\u044B \u0443\u043C\u043D\u044B\u0439 PPC \u043C\u0435\u043D\u0435\u0434\u0436\u0435\u0440. :) (From Google translate, pardon my bad Russian...)"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.pointit.com/blog/what-you-need-to-know-about-yandex-ppc/>