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'm sure that my map will show this building; it is very famous.

Ex Output:
i, my, this, it


Ex Input:
i saw jim yelling at some guy in a military uniform with a huge red beard. i don't know why he was, but he looked very unhappy.

Ex Output:
i, he


Ex Input:
john was jogging through the park when he saw a man juggling watermelons. he was very impressive.

Ex Output:

he