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.

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

Output: he


Input: Consider Input: there is a gap in the wall. you can see the garden through it .

Output: you, it


Input: Consider Input: bob paid for charlie's college education. he is very grateful.


Output: he