YOU SAID:
My aunt's cousin is my cousin's aunt.
INTO JAPANESE
私の叔母のいとこは、私のいとこのおばさんです。
BACK INTO ENGLISH
My aunts cousin is my cousin's aunt.
INTO JAPANESE
私の叔母のいとこは、私のいとこのおばさんです。
BACK INTO ENGLISH
My aunts cousin is my cousin's aunt.
That didn't even make that much sense in English.