YOU SAID:

if the glass is half empty and a glass is half full, how much glass is there?

INTO JAPANESE

ガラスが半分空で、ガラスが半分いっぱいの場合、どれくらいのガラスがありますか？

BACK INTO ENGLISH

If the glass is half empty and half full, how much glass do you have?

INTO JAPANESE

ガラスの半分が空で半分がいっぱいの場合、どれくらいのガラスがありますか？

BACK INTO ENGLISH

If half of the glass is empty and half full, how much glass do you have?

INTO JAPANESE

ガラスの半分が空で半分がいっぱいの場合、どれくらいのガラスがありますか？

BACK INTO ENGLISH

If half of the glass is empty and half full, how much glass do you have?