<http://schema.org/description>
"How much does a person eat in two years? A trip to Mars is supposed to take six months to get there and six months to get back, and with perhaps a year spent on the planet, how much food would the ship have to carry for each person?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://recipes.howstuffworks.com/question720.htm>