<http://webisa.webdatacommons.org/145515873>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<cmu.edu> .
<http://webisa.webdatacommons.org/prov/54230424>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/145515873> .
<http://webisa.webdatacommons.org/145515873>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/145515873>	<http://www.w3.org/ns/prov#value>	"Reductions in the cost of technology as a result of learning-by-doing, R & D investments, and other factors have been observed over many decades." .