YOU SAID:
The girl needs help with the teachers homework because he contradicted himself.
INTO JAPANESE
彼は自分自身と矛盾したので、女の子は教師の宿題を手伝う必要があります。
BACK INTO ENGLISH
The girl needs to help the teacher with her homework because he is inconsistent with herself.
INTO JAPANESE
彼は自分自身と矛盾しているので、女の子は彼女の宿題で先生を助ける必要があります。
BACK INTO ENGLISH
The girl needs to help her teacher with her homework because he is inconsistent with herself.
INTO JAPANESE
彼は自分自身と矛盾しているので、女の子は彼女の宿題で彼女の先生を助ける必要があります。
BACK INTO ENGLISH
The girl needs to help her teacher with her homework because he is inconsistent with herself.
That didn't even make that much sense in English.