About: http://webisa.webdatacommons.org/98141205

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The tannins are a group of simple and complex phenol, polyphenol and flavonoid compounds, bound with starches, and often they are just classified as tannins simply as they contain variations on gallic acid.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com