About: http://webisa.webdatacommons.org/416437526

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Forty-five minutes is a common length for many high school and college classes.
http://www.w3.org/ns/prov#wasQuotedFrom	frontiersin.org