YOU SAID:
my grandma packed me ricecake
INTO JAPANESE
おばあちゃんは私に餅をパック
BACK INTO ENGLISH
She packed cake I
INTO JAPANESE
彼女はケーキをパック私
BACK INTO ENGLISH
She is cake Pack I
INTO JAPANESE
彼女はパックのケーキ私
BACK INTO ENGLISH
She's a cake my Pack
INTO JAPANESE
彼女はケーキ私のパック
BACK INTO ENGLISH
She's my cake Pack
INTO JAPANESE
彼女は私のパックのケーキ
BACK INTO ENGLISH
She is the cake of my Pack
INTO JAPANESE
彼女は私のパックのケーキ
BACK INTO ENGLISH
She is the cake of my Pack
That didn't even make that much sense in English.