landscape painting vs genre

landscape painting and genre both are nouns.

Word	Noun	Adjective	Verb	Adverb
landscape painting	Yes	No	No	No
genre	Yes	No	No	No

As nouns, genre is a hypernym of landscape painting; that is, genre is a word with a broader meaning than landscape painting:

landscape painting: a genre of art dealing with the depiction of natural scenery
genre: a class of art (or artistic endeavor) having a characteristic form or technique

landscape painting (noun)	genre (noun)
a genre of art dealing with the depiction of natural scenery	a class of art (or artistic endeavor) having a characteristic form or technique
	a kind of literary or artistic work
	a style of expressing yourself in writing