beet sugar vs refined sugar

beet sugar and refined sugar both are nouns.

Word	Noun	Adjective	Verb	Adverb
beet sugar	Yes	No	No	No
refined sugar	Yes	No	No	No

As nouns, refined sugar is a hypernym of beet sugar; that is, refined sugar is a word with a broader meaning than beet sugar:

beet sugar: sugar from sugar beets used as sweetening agent
refined sugar: a white crystalline carbohydrate used as a sweetener and preservative

Other hypernyms of beet sugar include sugar.

beet sugar (noun)	refined sugar (noun)
sugar from sugar beets used as sweetening agent	a white crystalline carbohydrate used as a sweetener and preservative
sugar made from sugar beets