YOU SAID:

The former is suboptimal, the latter is non-existent.

INTO JAPANESE

前者は最適ではない、後者は非存在しません。

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Is not ideal for the former, the latter is not non-existent.

INTO JAPANESE

前者には理想的ではない、後者は非存在しません。

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Ideal for the former, not the latter is non-existent.

INTO JAPANESE

前者は理想的な後者は非存在しません。

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The former is latter ideal does not non-existent.

INTO JAPANESE

前者は、後者の理想はない存在です。

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The former is not the ideals of the latter.

INTO JAPANESE

前者は、後者の理想ではありません。

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The former not the latter ideal.

INTO JAPANESE

前者後者の理想ではないです。

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The ideal of the former the latter is not.

INTO JAPANESE

後者は、前者の最適です。

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The latter is ideal for the former.

INTO JAPANESE

後者は前者に最適です。

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The latter is ideal for the former.