<http://webisa.webdatacommons.org/227451396>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/227451396>	<http://www.w3.org/ns/prov#value>	"It is known that sound propagates through various mediums at various speeds in such fields as SONAR and RADAR fields." .
<http://webisa.webdatacommons.org/prov/366989735>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/227451396> .
<http://webisa.webdatacommons.org/227451396>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .