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<http://webisa.webdatacommons.org/437870325>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<knpb.org> .
<http://webisa.webdatacommons.org/437870325>	<http://www.w3.org/ns/prov#value>	"Students now measure the pH of their water samples and record their information, including observations." .
<http://webisa.webdatacommons.org/437870325>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .