terrorist organization vs Alex Boncayao Brigade

terrorist organization and Alex Boncayao Brigade both are nouns.

Word	Noun	Adjective	Verb	Adverb
terrorist organization	Yes	No	No	No
Alex Boncayao Brigade	Yes	No	No	No

terrorist organization (noun)	Alex Boncayao Brigade (noun)
a political movement that uses terror as a weapon to achieve its goals	an urban hit squad and guerrilla group of the Communist Party in the Philippines; formed in the 1980s