<http://webisa.webdatacommons.org/196673780>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/412120723>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/196673780> .
<http://webisa.webdatacommons.org/prov/61427665>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/196673780> .
<http://webisa.webdatacommons.org/196673780>	<http://www.w3.org/ns/prov#value>	" bacteria, nutrients and other chemicals have, over time, *caused alterations in aquatic community" .
<http://webisa.webdatacommons.org/196673780>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<gpo.gov> .