<http://webisa.webdatacommons.org/prov/54715222>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/210160749> .
<http://webisa.webdatacommons.org/210160749>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<docstoc.com> .
<http://webisa.webdatacommons.org/prov/54169316>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/210160749> .
<http://webisa.webdatacommons.org/210160749>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/210160749>	<http://www.w3.org/ns/prov#value>	"It is normally represented by a letter such as X or Y. When the outcome itself is numeri-" .