大陸 たいりく横断 おうだん鉄道 てつどうなら
tairikuōdantetsudōnara

Noun
Da Copula

The "-nara" conditional form ("if/when…") of 大陸横断鉄道

1. If/when the transcontinental railroad…; If there were a transcontinental railroad…

Nara Conditional