YOU SAID:
I love elephants because I am one
INTO JAPANESE
私は象が大好きなのは、私が一つだから
BACK INTO ENGLISH
I love elephants because I'm the one
INTO JAPANESE
私が象が大好きなのは、私が象だからです
BACK INTO ENGLISH
I love elephants because I am an elephant.
INTO JAPANESE
私は象なので、私は象が大好きです。
BACK INTO ENGLISH
I love elephants because I am an elephant.
Come on, you can do better than that.