糸魚川 いといがわ静岡 しずおか構造 こうぞう せんであれば
itoiga washizu okakō zōsendeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 糸魚川静岡構造線

1. If it were the Itoigawa-Shizuoka Tectonic Line; If it is the Itoigawa-Shizuoka Tectonic Line

Ba Conditional