<http://webisa.webdatacommons.org/91468497>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<blogspot.com> .
<http://webisa.webdatacommons.org/91468497>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/307126446>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/91468497> .
<http://webisa.webdatacommons.org/91468497>	<http://www.w3.org/ns/prov#value>	"A good playwright can be a bad librettist because the structure he creates may provide insufficient space for arias, duets, or other moments where the composer can do what he does best." .