How to write OI Hagi-shi Yamaguchi in Japanese characters

How to write OI Hagi-shi Yamaguchi in Japanese characters. The data come from Japan Post.

zipcode and address

OI（Inseart numbers and so on before the address）
Hagi-shi, Yamaguchi
759-3611 Japan

Japanese Kanji

You can click/tap to copy Japanese Expression partially.
山口県萩市大井
7593611

Japanese Hiragana

やまぐちけんはぎしおおい

Japanese Katakana

ヤマグチケンハギシオオイ

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