About: http://webisa.webdatacommons.org/297562909

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	They are offered by reputable organizations which have testing and other requirements before getting the certification.
http://www.w3.org/ns/prov#wasQuotedFrom	sequenceinc.com