Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
海水 かいすい sea waterleda1, shizen
緑の日 みどりのひ (n) Greenery Day (national holiday; May 4)namae, toki
四分 よんぷん 4 minutestoki
childhito, jlpt4
分の ぶんの denominator bun no numerator (in writing common fractions), X Yth's (Y bun no X)jlpt3, math