YOU SAID:
If a type of tape is called duck tape it has to be made out of ducks.
INTO JAPANESE
テープの種類がダックテープと呼ばれる場合、それはアヒルで作られている必要があります。
BACK INTO ENGLISH
If a type of tape is called duck tape, it must be made of duck.
INTO JAPANESE
テープの種類がダックテープと呼ばれる場合、それはダックで作られている必要があります。
BACK INTO ENGLISH
If a type of tape is called duck tape, it must be made of duck.
That didn't even make that much sense in English.