<http://webisa.webdatacommons.org/163814444>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/163814444>	<http://www.w3.org/ns/prov#value>	"if c isn&#39;t &#40;, &#41;, +,-,*,/, or ^ then check if c is a letter" .
<http://webisa.webdatacommons.org/prov/54690154>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/163814444> .
<http://webisa.webdatacommons.org/163814444>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<dreamincode.net> .