<http://schema.org/description>
"Singing fish are everywhere -- at the mall, on TV and in catalogs! They are silly, but it turns out that there is an amazing amount of technology inside them -- they are really simple robots! Find out exactly how they work."^^<http://www.w3.org/2001/XMLSchema#string>
<http://entertainment.howstuffworks.com/singing-fish1.htm>