<http://webisa.webdatacommons.org/prov/366357411> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/229870005> . <http://webisa.webdatacommons.org/229870005> <http://www.w3.org/ns/prov#wasQuotedFrom> <federalregister.gov> . <http://webisa.webdatacommons.org/229870005> <http://www.w3.org/ns/prov#value> "They are found in water and soil and on plants, including fruits and vegetables??? (Ref. 1)." . <http://webisa.webdatacommons.org/229870005> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/195992115> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/229870005> .