Task: Information Extraction
Input (English): Sentence1: John got a new cat and was worried how it would take to the old one. Sentence2: He tried everything but the old cat would always act mean. Sentence3: One day the old cat was stuck in a box and the young cat helped it. Sentence4: Ever since they became best friends. Sentence5: John was so happy with the result, he got another cat.
Output (English): Another cat, John, Old cat, New cat