Vocabulary consisting only from characters you are able to read
文書
bunsho
document, writing, letter, paperwork, note, records, archives; document, writing, letter, paperwork, note, records, archivesmix
足りる
tariru
(1)to be sufficient/to be enough/ (2)to be worth doing/to be worthy/ (3)to be sufficient/to answer/to do/(P) ichidan, jlpt3, verb, vintrans
少しずつ
sukoshizutsu
little by littlemix