About: http://webisa.webdatacommons.org/352395531

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	Poor oral hygiene, taking antibiotics or antacids that contain bismuth (e.g. Pepto Bismol) can have the same effect, and habits such as smoking, chewing tobacco, or drinking lots of coffee or tea can actually stain the tongue.
http://www.w3.org/ns/prov#wasQuotedFrom	drdonnica.com