東海道 とうかいどう五十 ごじゅう さん であれば
tōkai dō gojū sanjideareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 東海道五十三次

1. If it were the Fifty-three Stations of the Tōkaidō; When it is the Fifty-three Stations of the Tōkaidō

Ba Conditional