YOU SAID:
all ravens are crows but not all crows are ravens
INTO JAPANESE
すべてのカラスはカラスですが、すべてのカラスがカラスではありません
BACK INTO ENGLISH
All crows are crows, but all crows are not crows
INTO JAPANESE
すべてのカラスはカラスですが、すべてのカラスはカラスではありません
BACK INTO ENGLISH
All crows are crows, but all crows are not crows
Come on, you can do better than that.