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: the trophy doesn't fit into the brown suitcase because it is too small.
Example Output: it

Example Input: frank was upset with tom because the toaster he had bought from him didn't work.
Example Output: he, him

Example 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.
Example Output:
i, he