About: http://webisa.webdatacommons.org/345401250

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	Obviously feature detection is the best way to go for functionality and most other things but user-agent sniffing is still alright to use in my opinion.
http://www.w3.org/ns/prov#wasQuotedFrom	css-tricks.com