<http://webisa.webdatacommons.org/166664821>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/185119114>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/166664821> .
<http://webisa.webdatacommons.org/prov/352819182>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/166664821> .
<http://webisa.webdatacommons.org/166664821>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<wateronline.com> .
<http://webisa.webdatacommons.org/prov/352819328>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/166664821> .
<http://webisa.webdatacommons.org/166664821>	<http://www.w3.org/ns/prov#value>	"The most frequently detected contaminant in the study was the antibiotic sulfamethoxazole, which is used to treat infections such as urinary tract infections, middle ear infections and travelers' diarrhea." .