Vocabulary consisting only from characters you are able to read
銀器
ぎんき
silver utensilsmix
億
おく
(num) 100,000,000, hundred millionjlpt4
観戦
かんせん
watching a (sports) gamesuru
観察
かんさつ
observation, surveysuru
課題
かだい
subject/theme/task/challenge/issue/matter/(P)jlpt3, leda1