Assertion: deoxyribose's oxygen atom | /r/CapableOf | take position
Facets:
value: below the plane of the ring
type: LOCATION
Source sentences:
text: During the conversion from straight-chain form to the cyclic form, the carbon atom containing the carbonyl oxygen, called the anomeric carbon, becomes a stereogenic center with two possible configurations: The oxygen atom may take a position either above or below the plane of the ring.