<http://schema.org/description>
"Did you know that servers, guides, drivers, concierges and others who help us dine and travel sometimes aren&amp;#039;t paid even minimum wage by their employers? They depend on customer gratuities. Want to know what to tip and when?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://people.howstuffworks.com/tipping.htm/printable>