<http://webisa.webdatacommons.org/prov/304449247>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/115261357> .
<http://webisa.webdatacommons.org/115261357>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/115261357>	<http://www.w3.org/ns/prov#value>	"A unit is a number that has a multiplicative inverse, so in the units are 1 and -1." .
<http://webisa.webdatacommons.org/115261357>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<wordpress.com> .