About: http://webisa.webdatacommons.org/140521215

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	In May 2009, Google was the target of a serious denial-of-service (DoS) attack that took down services such as Google News and Gmail for several days.
http://www.w3.org/ns/prov#wasQuotedFrom	microsoft.com