goa bean vs goa bean

goa bean and goa bean both are nouns.

Word	Noun	Adjective	Verb	Adverb
goa bean	Yes	No	No	No
goa bean	Yes	No	No	No

goa bean (noun)	goa bean (noun)
Old World tropical bean	Old World tropical bean
a tuberous twining annual vine bearing clusters of purplish flowers and pods with four jagged wings; Old World tropics	a tuberous twining annual vine bearing clusters of purplish flowers and pods with four jagged wings; Old World tropics