<http://webisa.webdatacommons.org/137830732>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/137830732>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/155985048>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/137830732> .
<http://webisa.webdatacommons.org/137830732>	<http://www.w3.org/ns/prov#value>	"These systems are based on three types of logic which are called ad hoc, semi-rigorous, and consistent." .