Belgian sheepdog vs sheepdog

Belgian sheepdog and sheepdog both are nouns.

Word	Noun	Adjective	Verb	Adverb
Belgian sheepdog	Yes	No	No	No
sheepdog	Yes	No	No	No

As nouns, sheepdog is a hypernym of Belgian sheepdog; that is, sheepdog is a word with a broader meaning than Belgian sheepdog:

Belgian sheepdog: hardy working dog developed in Belgium for herding sheep
sheepdog: any of various usually long-haired breeds of dog reared to herd and guard sheep

Other hypernyms of Belgian sheepdog include sheep dog, shepherd dog.

Belgian sheepdog (noun)	sheepdog (noun)
hardy working dog developed in Belgium for herding sheep	any of various usually long-haired breeds of dog reared to herd and guard sheep