<http://webisa.webdatacommons.org/71556225>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<tumblr.com> .
<http://webisa.webdatacommons.org/prov/440388009>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/71556225> .
<http://webisa.webdatacommons.org/71556225>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/71556225>	<http://www.w3.org/ns/prov#value>	"A steam engine is a machine that converts the heat energy of steam into mechanical energy." .