隅田 すみだ がわ花火 はなび大会 たいかいであれば
sumidagawahanabitaikaideareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 隅田川花火大会

1. If/When Sumida River Fireworks Festival; Were Sumida River Fireworks Festival

Ba Conditional