About: http://webisa.webdatacommons.org/39254458

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	Quitting tobacco is difficult because all forms of it???cigarettes, cigars and spit (chewing) tobacco???contain nicotine and nicotine is the agent in tobacco he is capable of causing addiction or dependence.
http://www.w3.org/ns/prov#wasQuotedFrom	ada.org