Task: Information Extraction
Input (English): Sentence1: John wanted to become more fit. Sentence2: But he didn't want to go about it conventionally. Sentence3: So John called Mark, a professional circus performer, to ask for ideas. Sentence4: Mark suggested acrobatics, knowing John's athleticism and flexibility. Sentence5: By the end of the year John had quit his job and joined the circus.
Output (English): John, Mark