YOU SAID:

The problem with America is stupidity.

INTO JAPANESE

アメリカの問題は、愚かさです。

BACK INTO ENGLISH

America's problem is stupidity.

INTO JAPANESE

アメリカの問題は愚かな。

BACK INTO ENGLISH

America's problem is silly.

INTO JAPANESE

アメリカの問題は、愚かです。

BACK INTO ENGLISH

America's problem is silly.