YOU SAID:
There's a hamster in my coffee
INTO JAPANESE
私はコーヒーにハムスターがあります。
BACK INTO ENGLISH
I have a hamster in the coffee.
INTO JAPANESE
コーヒーにハムスターがあります。
BACK INTO ENGLISH
Coffee has a hamster.
INTO JAPANESE
コーヒーはハムスターです。
BACK INTO ENGLISH
Coffee is a hamster.
INTO JAPANESE
コーヒーはハムスターです。
BACK INTO ENGLISH
Coffee is a hamster.
That didn't even make that much sense in English.