<http://webisa.webdatacommons.org/148082802>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/398372170>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/148082802> .
<http://webisa.webdatacommons.org/prov/54369758>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/148082802> .
<http://webisa.webdatacommons.org/148082802>	<http://www.w3.org/ns/prov#value>	"If a is a positive number, ???a is a number that satisfies a + (???a) = 0." .
<http://webisa.webdatacommons.org/148082802>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<utdanacenter.org> .