<http://webisa.webdatacommons.org/155167921>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/155167921>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<proventtherapy.com> .
<http://webisa.webdatacommons.org/prov/497232078>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/155167921> .
<http://webisa.webdatacommons.org/155167921>	<http://www.w3.org/ns/prov#value>	"The risk is especially great for people who smoke more than 20 cigarettes a day." .