そもんとうじゃなかったです
蘇門答剌じゃなかったです
so montōjanakattadesu

Noun
Desu Copula

The polite, past negative form of スマトラ

1. Wasn't Sumatra.; Wasn't going to Sumatra.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana