YOU SAID:
This sentence will work - not not valid not valid
INTO JAPANESE
この文は有効です - 有効ではありません 無効です
BACK INTO ENGLISH
This statement is valid - not valid not valid
INTO JAPANESE
この文は有効です - 有効ではありません 有効ではありません
BACK INTO ENGLISH
This statement is valid - not valid not valid
That didn't even make that much sense in English.