About: http://webisa.webdatacommons.org/277261179

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	Included in each workbook is an accompanying CD, a sight-singing booklet of warm-up exercises for each level, and a laminated keyboard.
http://www.w3.org/ns/prov#wasQuotedFrom	singers.com