<http://webisa.webdatacommons.org/222963902>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<toronto.edu> .
<http://webisa.webdatacommons.org/222963902>	<http://www.w3.org/ns/prov#value>	"applications such as engineering, complex numbers are needed." .
<http://webisa.webdatacommons.org/prov/129970278>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/222963902> .
<http://webisa.webdatacommons.org/222963902>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .