<http://webisa.webdatacommons.org/456679750>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.co.uk> .
<http://webisa.webdatacommons.org/456679750>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/89919609>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/456679750> .
<http://webisa.webdatacommons.org/456679750>	<http://www.w3.org/ns/prov#value>	"In an embodiment, the DNA isolation method is implemented by pretreating the urine sample with a denaturing agent, such as urea, guanidine HCl, or guanidine isothiocyanate, at room temperature." .