lobby group vs political entity

lobby group and political entity both are nouns.

Word	Noun	Adjective	Verb	Adverb
lobby group	Yes	No	No	No
political entity	Yes	No	No	No

As nouns, political entity is a hypernym of lobby group; that is, political entity is a word with a broader meaning than lobby group:

lobby group: an interest group that tries to influence legislators or bureaucrats to act in their favor, typically through lobbying
political entity: a unit with political responsibilities

Other hypernyms of lobby group include interest, interest group, political unit.

lobby group (noun)	political entity (noun)
an interest group that tries to influence legislators or bureaucrats to act in their favor, typically through lobbying	a unit with political responsibilities