YOU SAID:
Entrance isn't allowed
INTO JAPANESE
入学が許可されていません。
BACK INTO ENGLISH
Admission is not allowed.
INTO JAPANESE
入場は許可されていません。
BACK INTO ENGLISH
Visitors are not allowed.
INTO JAPANESE
訪問者は許可されません。
BACK INTO ENGLISH
Visitors are not allowed.
That didn't even make that much sense in English.