Vocabulary consisting only from characters you are able to read
上
うえ
above, on top of, up, upper part, surfacejlpt5
山
やま
mountain, pile, heap, climax, critical pointjlpt5, shizen
よじ上る
よじのぼる
to climb, to clamber (over, up), to scramble (up), to scale, to claw one's way upgodan, verb, vintrans