Indicate all the pronouns (they, them, you, he, his, her, you, it, etc.) present in the given sentence. If there are multiple such pronouns in a sentence, then list them in the order of their first appearance in the given sentence. If a pronoun appears multiple times in a sentence, list it only once.

Ex Input:
the man couldn't lift his son because he was so weak.

Ex Output:
his, he


Ex Input:
susan knows all about ann's personal problems because she is nosy.

Ex Output:
she


Ex Input:
paul tried to call george on the phone, but he wasn't successful.

Ex Output:

he