<http://schema.org/description>
"Learn how email works, sign up for a free email account, and learn about sending, replying to, forwarding messages and attachments."^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.nypl.org/events/programs/2013/07/05/email-beginners-0?pref=node_type_search%2Fevent_class>