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:
i used an old rag to clean the knife, and then i put it in the trash.

Ex Output:
i, it


Ex Input:
the fish ate the worm. it was hungry.

Ex Output:
it


Ex Input:
i poured water from the bottle into the cup until it was empty.

Ex Output:

i, it