YOU SAID:
It is a piece of cake to eat a horse
INTO JAPANESE
馬を食べるのはケーキです
BACK INTO ENGLISH
A horse eats a cake
INTO JAPANESE
馬がケーキを食べる
BACK INTO ENGLISH
Horse eats cake
INTO JAPANESE
馬はケーキを食べる
BACK INTO ENGLISH
Horse eats cake
Okay, I get it, you like Translation Party.