About: http://webisa.webdatacommons.org/48277270

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	Familiar to wine drinkers as the ingredient that causes headaches, tannins are an astringent element found in bark and leaves of all plants and are there to repel life forms such as grazing animals, insects and pests.
http://www.w3.org/ns/prov#wasQuotedFrom	pfaf.org