<http://webisa.webdatacommons.org/123668793>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<maplesoft.com> .
<http://webisa.webdatacommons.org/prov/215555422>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/123668793> .
<http://webisa.webdatacommons.org/123668793>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/123668793>	<http://www.w3.org/ns/prov#value>	"??? attributes = L where L is a list involving some of the keywords differential, prime, primitive, squarefree, coherent, autoreduced, normalized." .