YOU SAID:

the cake is a lie only if it does not tell the truth

INTO JAPANESE

ケーキは真実を伝えない場合にのみ嘘です

BACK INTO ENGLISH

Cake is a lie only if you don't tell the truth

INTO JAPANESE

ケーキはあなたが真実を言わない場合にのみ嘘です

BACK INTO ENGLISH

Cake is a lie only if you don't tell the truth