<http://webisa.webdatacommons.org/191921851>	<http://www.w3.org/ns/prov#value>	"contain characters other than letters, digits, and underscores, and" .
<http://webisa.webdatacommons.org/191921851>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/335046804>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/191921851> .
<http://webisa.webdatacommons.org/191921851>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<nrao.edu> .