Vocabulary consisting only from characters you are able to read
黄金
ougon
gold; (n,adj-no) gold; (n,adj-no) gold; goldmix
三日
mikka
three days, the third day of the monthjlpt5, toki
一次(の)
ičidži(no)
first/primary/linear (equation)/first-orderadj, leda1
金山
kinzan
(gold) mine; (gold) minemix