About: http://webisa.webdatacommons.org/403360883

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	For instances, the account can be required to answer a challenge such as a HIP (human interactive proof) or a computational challenge either after every 30 outgoing messages or every 30 recipients are counted.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es