About: http://webisa.webdatacommons.org/311028974

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Shock waves around supersonic airplanes, rockets or canonballs are a problem.
http://www.w3.org/ns/prov#wasQuotedFrom	4p8.com