YOU SAID:
Japan is a country that I'm not allowed to enter
INTO JAPANESE
日本がしてはいけない国です。
BACK INTO ENGLISH
It is a country Japan is not.
INTO JAPANESE
それは日本ではない国です。
BACK INTO ENGLISH
It is not Japan.
INTO JAPANESE
それは日本ではないです。
BACK INTO ENGLISH
It is not Japan.
Well done, yes, well done!