<http://webisa.webdatacommons.org/prov/51248833>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/438910671> .
<http://webisa.webdatacommons.org/438910671>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<wordpress.com> .
<http://webisa.webdatacommons.org/prov/295012284>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/438910671> .
<http://webisa.webdatacommons.org/438910671>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/438910671>	<http://www.w3.org/ns/prov#value>	"With time, food, drink, tobacco and other chemicals can penetrate through these pores to the dentine layer." .