<http://webisa.webdatacommons.org/163183948>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.ca> .
<http://webisa.webdatacommons.org/163183948>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/215377882>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/163183948> .
<http://webisa.webdatacommons.org/163183948>	<http://www.w3.org/ns/prov#value>	"Z contains at least one atom other than carbon, typically O, N or S. In any case, the R2 groups possess at least one of these practical utilities." .