<http://schema.org/description>
"It may look like real stack of carefully balanced smooth river stones in your garden with gently falling water cascading down the sides, but these faux stones are made from realistically textured and colored polyresin that can be stacked any way you like."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.thegreenhead.com/2012/05/riverstone-garden-fountain.php>