<http://webisa.webdatacommons.org/prov/489006984>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/139094567> .
<http://webisa.webdatacommons.org/139094567>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/139094567>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<noao.edu> .
<http://webisa.webdatacommons.org/139094567>	<http://www.w3.org/ns/prov#value>	"Scripts are a powerful tool for executing a sequence of tcl commands, including" .