About: http://webisa.webdatacommons.org/216451554

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	The reason it may be blocked by protective Internet security software is because iframes are a popular way for hackers to stealthily add malicious content to web pages and cross-domain iframes are the most dangerous in that regard.
http://www.w3.org/ns/prov#wasQuotedFrom	ebay.com