YOU SAID:
Where in the world is the earth?
INTO JAPANESE
どこの世界で地球ですか。
BACK INTO ENGLISH
In a world where the Earth is?
INTO JAPANESE
それは世界か。
BACK INTO ENGLISH
It is the world?
INTO JAPANESE
それは、世界ですか。
BACK INTO ENGLISH
It is the world?
You've done this before, haven't you.