<http://webisa.webdatacommons.org/57505844>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<docstoc.com> .
<http://webisa.webdatacommons.org/57505844>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/116541466>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/57505844> .
<http://webisa.webdatacommons.org/57505844>	<http://www.w3.org/ns/prov#value>	" We will look at PHP variables and data types in more detail in the next chapter." .