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.

Example Input: mark told pete many lies about himself, which pete included in his book. he should have been more skeptical.
Example Output: himself, his, he

Example Input: the city councilmen refused the demonstrators a permit because they feared violence.
Example Output: they

Example Input: jim yelled at kevin because he was so upset.
Example Output:
he