<http://webisa.webdatacommons.org/421041054> <http://www.w3.org/ns/prov#value> "In the book, I concentrate mainly on two individuals who are listed along with the rest of the artists: Rafael Ferrer, a Puerto Rican artist who did a supposedly pre-planned impromptu intervention in the show, and Joseph Beuys, who had been invited to the show but did not accept the invitation, hence the eleven artist names." . <http://webisa.webdatacommons.org/prov/504899340> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/421041054> . <http://webisa.webdatacommons.org/421041054> <http://www.w3.org/ns/prov#wasQuotedFrom> <artdaily.com> . <http://webisa.webdatacommons.org/421041054> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> .