About: http://webisa.webdatacommons.org/134657205

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	I guess you could consider my comment a possible requested addition to the book - some sort of hint or brief on macruby.
http://www.w3.org/ns/prov#wasQuotedFrom	pragprog.com