<http://webisa.webdatacommons.org/242760083>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<stackexchange.com> .
<http://webisa.webdatacommons.org/prov/170511546>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/242760083> .
<http://webisa.webdatacommons.org/242760083>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/242760083>	<http://www.w3.org/ns/prov#value>	"A mask is a mask is a mask; a shade of grey to determine the opacity of an image." .