<http://schema.org/keywords>
"Antioxidants, Benefits, Black, green, Health, Herbal, Oolong, Pu-erh, tea, White"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.thetummytraveler.ph/2012/11/16/types-of-tea-and-their-health-benefits/>