<http://webisa.webdatacommons.org/prov/15202649>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/138943732> .
<http://webisa.webdatacommons.org/138943732>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/138943732>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<slideshare.net> .
<http://webisa.webdatacommons.org/prov/135814118>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/138943732> .
<http://webisa.webdatacommons.org/138943732>	<http://www.w3.org/ns/prov#value>	"IsLetterOrDigit determines whether a character is a letter or a digit." .