mash bean vs edible bean

mash bean and edible bean both are nouns.

Word	Noun	Adjective	Verb	Adverb
mash bean	Yes	No	No	No
edible bean	Yes	No	No	No

As nouns, edible bean is a hypernym of mash bean; that is, edible bean is a word with a broader meaning than mash bean:

mash bean: seed of the mung bean plant used for food
mash bean: food from the seed of the mung bean plant
edible bean: any of various edible seeds of plants of the family Leguminosae used for food

Other hypernyms of mash bean include bean.

mash bean (noun)	edible bean (noun)
seed of the mung bean plant used for food; food from the seed of the mung bean plant	any of various edible seeds of plants of the family Leguminosae used for food
seed of the mung bean plant; used for food; seed of the mung bean plant