三角 さんかく えん神獣 しんじゅう きょうであれば
sankakuenshinjū kyōdeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 三角縁神獣鏡

1. If it were a triangular-rimmed divine beast mirror; If it is a triangular-rimmed divine beast mirror

Ba Conditional