<http://webisa.webdatacommons.org/141736389>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<docstoc.com> .
<http://webisa.webdatacommons.org/prov/344121161>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/141736389> .
<http://webisa.webdatacommons.org/141736389>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/340856098>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/141736389> .
<http://webisa.webdatacommons.org/141736389>	<http://www.w3.org/ns/prov#value>	"compounds are those wherein R.sup.5 is different from hydrogen and preferably represents halogen, especially chlorine or fluorine, and the other radicals R.sup.4 and R.sup.3 are hydrogen." .