<http://webisa.webdatacommons.org/291387211>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/507544877>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/291387211> .
<http://webisa.webdatacommons.org/291387211>	<http://www.w3.org/ns/prov#value>	"A scientific theory consists of an explanation......A theory is an explanation of how (cause) or why (reason, purpose) something happened." .
<http://webisa.webdatacommons.org/291387211>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<blogspot.com> .