Natural languages such as Spanish, Tamil, Hindi, English, etc. Formal language code tags expressed in <a href="https://en.wikipedia.org/wiki/IETF_language_tag">BCP 47</a> can be used via the <a class="localLink" href="http://schema.org/alternateName">alternateName</a> property. The Language type previously also covered programming languages such as Scheme and Lisp, which are now best represented using <a class="localLink" href="http://schema.org/ComputerLanguage">ComputerLanguage</a>.