About: http://webisa.webdatacommons.org/277470857

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 them Marx and Engels wrote of their creative plans, of the immense research they undertook in different fields of knowledge, and touched upon a wide range of philosophical, economic, sociological and other problems.
http://www.w3.org/ns/prov#wasQuotedFrom	marxists.org