Baader Meinhof Gang vs terrorist group

Baader Meinhof Gang and terrorist group both are nouns.

Word	Noun	Adjective	Verb	Adverb
Baader Meinhof Gang	Yes	No	No	No
terrorist group	Yes	No	No	No

Baader Meinhof Gang (noun)	terrorist group (noun)
a radical left-wing revolutionary terrorist group active in Germany from 1968 until 1977	a political movement that uses terror as a weapon to achieve its goals