About: http://webisa.webdatacommons.org/279102342

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	However, natural fish oils have a number of drawbacks: high levels of contaminants such as PCBs, dioxins and heavy metals including mercury.
http://www.w3.org/ns/prov#wasQuotedFrom	fishoilguide.org