About: http://webisa.webdatacommons.org/281084886

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	This means that with Greenfoot and this book, you cannot start quite as young - I would say maybe 14 is a good starting age for this.
http://www.w3.org/ns/prov#wasQuotedFrom	amazon.com