About: http://webisa.webdatacommons.org/63681268

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	Permanent staining occurs when teeth are exposed to dark foods or beverages like wine or berries and other factors such as using tobacco.
http://www.w3.org/ns/prov#wasQuotedFrom	drsousa.com