Vocabulary consisting only from characters you are able to read
課題
kadai
subject/theme/task/challenge/issue/matter/(P)jlpt3, leda1
愛器
aiki
favourite musical instrument, utensil, etc.ongaku
関わる
kakawaru
(1)to be affected, to be influenced, (2)to be concerned with, to have to do with, (3)to stick to (opinions) godan, verb, vintrans
説く
toku
to explain, to advocate, to preach, to persuadegodan, verb
種
šu
(1)kind, variety, (2)(biological) species, (3)(abbr) (logical) species mix