About: http://webisa.webdatacommons.org/291197215

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 these online, problem-solving chats, interaction involves the production and distribution of text messages and, on occasion, other artifacts such as drawings, diagrams, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	mathforum.org