<http://webisa.webdatacommons.org/284130989>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<arttimesjournal.com> .
<http://webisa.webdatacommons.org/prov/6903989>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/284130989> .
<http://webisa.webdatacommons.org/284130989>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/284130989>	<http://www.w3.org/ns/prov#value>	"The plein air instruction was based on the principle of atmospheric perspective, and used the palette as a means to simplify teaching it, and as a control for various types and times of day." .