Vocabulary consisting only from characters you are able to read
主に
おもに
mainly, primarilymix
2階
2かい
(1)storey/story/floor/(n) (2)stairs/(n,n-suf) (3)stage (in chronostratigraphy)/(ctr) (4)counter for storeys and floors of a building/(P); stairs; (n) stairs mix
主な
おもな
chief, main, principal, importantmix