YOU SAID:
My cat ate my best friend's hamster and it survived.
INTO JAPANESE
私の猫は私の親友のハムスターを食べ、それは生き残った。
BACK INTO ENGLISH
My cat ate my best friend hamster and it survived.
INTO JAPANESE
私の猫は私の親友ハムスターを食べ、それは生き残った。
BACK INTO ENGLISH
My cat ate my best friend hamster and it survived.
That didn't even make that much sense in English.