YOU SAID:
the brown horse sits in a chair, drinking milk.
INTO JAPANESE
茶色の馬は牛乳を飲んで椅子に座っています。
BACK INTO ENGLISH
Brown horse is sitting in a chair drinking milk
INTO JAPANESE
茶色の馬は牛乳を飲んで椅子に座っています。
BACK INTO ENGLISH
Brown horse is sitting in a chair drinking milk
That didn't even make that much sense in English.