rice beer vs alcohol

rice beer and alcohol both are nouns.

Word	Noun	Adjective	Verb	Adverb
rice beer	Yes	No	No	No
alcohol	Yes	No	No	No

As nouns, alcohol is a hypernym of rice beer; that is, alcohol is a word with a broader meaning than rice beer:

rice beer: Japanese alcoholic beverage made from fermented rice; usually served hot
alcohol: a liquor or brew containing alcohol as the active agent

Other hypernyms of rice beer include alcoholic beverage, alcoholic drink, inebriant, intoxicant.

rice beer (noun)	alcohol (noun)
Japanese alcoholic beverage made from fermented rice; usually served hot	a liquor or brew containing alcohol as the active agent
	any of a series of volatile hydroxyl compounds that are made from hydrocarbons by distillation