brown bread vs staff of life

brown bread and staff of life both are nouns.

Word	Noun	Adjective	Verb	Adverb
brown bread	Yes	No	No	No
staff of life	Yes	No	No	No

As nouns, staff of life is a hypernym of brown bread; that is, staff of life is a word with a broader meaning than brown bread:

brown bread: dark steamed bread made of cornmeal wheat and flour with molasses and soda and milk or water
staff of life: food made from dough of flour or meal and usually raised with yeast or baking powder and then baked

Other hypernyms of brown bread include bread, breadstuff.

As nouns, staff of life is a hypernym of brown bread; that is, staff of life is a word with a broader meaning than brown bread:

brown bread: bread made with whole wheat flour
staff of life: food made from dough of flour or meal and usually raised with yeast or baking powder and then baked

Other hypernyms of brown bread include bread, breadstuff.

brown bread (noun)	staff of life (noun)
dark steamed bread made of cornmeal wheat and flour with molasses and soda and milk or water	food made from dough of flour or meal and usually raised with yeast or baking powder and then baked
bread made with whole wheat flour