<http://webisa.webdatacommons.org/prov/14498540>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/243642059> .
<http://webisa.webdatacommons.org/243642059>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/243642059>	<http://www.w3.org/ns/prov#value>	"Quantum mechanics ??? central not only to physics, but also to chemistry, materials science, and other fields ??? is notoriously abstract and difficult." .
<http://webisa.webdatacommons.org/243642059>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<oxfordscholarship.com> .
<http://webisa.webdatacommons.org/prov/39646355>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/243642059> .