<http://schema.org/bestRating>
"5"^^<http://www.w3.org/2001/XMLSchema#integer>
<http://www.amazon.com/gp/product/B0081L37Z0/ref=as_li_ss_tl?ie=UTF8&tag=lthologiccleanr23-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=B0081L37Z0>