Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
行う okonau to dogodan, jlpt3, jlpt4, leda1, verb
入院 njuuin enter hospitalbyouki, jlpt4, leda1
お金 okane moneyjlpt5, leda1
土木 doboku public worksmix
mizu waterjlpt5, kagaku, ryouri, shizen