<http://schema.org/description>
"How much do dogs understand? Do they have vocabulary comprehension and retention? Can they say &amp;quot;Woof!&amp;quot; and mean it? Take this quiz and learn more about whether dogs understand words."^^<http://www.w3.org/2001/XMLSchema#string>
<http://animals.howstuffworks.com/pets/dog-vocabulary-quiz1.htm>