<http://webisa.webdatacommons.org/439852773>	<http://www.w3.org/ns/prov#value>	"19. d) How much is a third of $21? $7 19. e) How much is 33" .
<http://webisa.webdatacommons.org/prov/516180963>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/439852773> .
<http://webisa.webdatacommons.org/439852773>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/439852773>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<themathpage.com> .