About: http://webisa.webdatacommons.org/220807683

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	However, according to Ravitch (2011), studies of voucher programs in Washington, DC, Cleveland, Milwaukee, and other areas demonstrate that vouchers have negligible effects on student academic achievement.
http://www.w3.org/ns/prov#wasQuotedFrom	colorado.edu