Assertion: vitamin e | /r/HasProperty | isolated in pure form
Facets:
value: at the university of california
type: LOCATION
value: by gladys anderson emerson
type: OTHER
value: by evans
type: OTHER
Source sentences:
text: Vitamin E was discovered in 1922 by Herbert McLean Evans and Katharine Scott Bishop and first isolated in a pure form by Evans and Gladys Anderson Emerson in 1935 at the University of California, Berkeley.