About: http://webisa.webdatacommons.org/272472213

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	here is an approach that seems to satisfy the OPer's (somewhat vaguely expressed, and with the inferred qualifications noted by others, and including a sentence ending with a period) requirements (needs Perl 5.10 \K regex enhancement):
http://www.w3.org/ns/prov#wasQuotedFrom	perlmonks.org