Task: Information Extraction
Input (English): Sentence1: Tom wanted to play a prank on his roommate. Sentence2: Tom asked his roommate's girlfriend for his computer password. Sentence3: Tom logged on to his roommate's computer. Sentence4: Tom changed the background photo to that of a fat shirtless man. Sentence5: Tom laughed like crazy when his roommate saw that nasty background.
Output (English): Roommate, Roommate's girlfiriend, Tom