<http://webisa.webdatacommons.org/248390938>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<alison.com> .
<http://webisa.webdatacommons.org/prov/186615339>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/248390938> .
<http://webisa.webdatacommons.org/248390938>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/248390938>	<http://www.w3.org/ns/prov#value>	"It guides you from basic operations, such as addition and subtraction, up to simplifying quadratic equations and more." .