Assertion: oxalic acid | /r/AtLocation | high levels
Facets:
value: naturally
type: MANNER
Source sentences:
text: Oxalic acid is an organic substance (with the chemical formula H 2 C 2 O 4 ) that occurs naturally in high levels in many common foods, including almonds, chocolate, bananas, rhubarb, parsley, tea, beer and spinach.