<http://webisa.webdatacommons.org/prov/255843321>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/132039739> .
<http://webisa.webdatacommons.org/prov/256530951>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/132039739> .
<http://webisa.webdatacommons.org/132039739>	<http://www.w3.org/ns/prov#value>	"The quality of water is declining due to the rise of urbanization, population growth, industrial production, climate change and other factors." .
<http://webisa.webdatacommons.org/prov/388800789>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/132039739> .
<http://webisa.webdatacommons.org/132039739>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<worldnature.org> .
<http://webisa.webdatacommons.org/132039739>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .