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The katakana syllable (wo). Its equivalent in hiragana is (wo). It is the forty-seventh syllable in the gojūon order; its position is (wa-gyō o-dan, row wa, section o).

The katakana syllable (o). Its equivalent in hiragana is (o). It is the forty-seventh syllable in the gojūon order; its position is (wa-gyō o-dan, row wa, section o).

Source: wiktionary.org