<http://webisa.webdatacommons.org/prov/477426269>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/405431265> .
<http://webisa.webdatacommons.org/405431265>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/405431265>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/405431265>	<http://www.w3.org/ns/prov#value>	"The use of a single control circuit 18 prevents inconvenience or other potential problems associated with detaching and reattaching data acquisition equipment to different chemical actuators 10 and supply tanks 12." .