license tax vs medical specialty

license tax and medical specialty both are nouns.

Word	Noun	Adjective	Verb	Adverb
license tax	Yes	No	No	No
medical specialty	Yes	No	No	No

license tax (noun)	medical specialty (noun)
a fee paid to the government for the privilege of being licensed to do something (as selling liquor or practicing medicine)	the branches of medical science that deal with nonsurgical techniques