YOU SAID:
I am one small boy from the house under the hill.
INTO JAPANESE
私は丘の下の家の小さな男の子です。
BACK INTO ENGLISH
I am a little boy in a house down the hill.
INTO JAPANESE
私は丘の下の家にいる小さな男の子です。
BACK INTO ENGLISH
I am a little boy in a house down the hill.
That didn't even make that much sense in English.