<http://webisa.webdatacommons.org/212064791>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<unl.edu> .
<http://webisa.webdatacommons.org/prov/1534617>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/212064791> .
<http://webisa.webdatacommons.org/212064791>	<http://www.w3.org/ns/prov#value>	"These include biological contaminants such as bacteria or viruses; inorganic chemicals such as lead, nitrate or sulfate; and organic chemicals such as insecticides, herbicides, fuel and solvents." .
<http://webisa.webdatacommons.org/212064791>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .