Question: when does ben come into parks and rec
[{'answer': 'The Master Plan', 'provenance': [{'wikipedia_id': '31086824', 'title': 'Ben Wyatt (Parks and Recreation)', 'start_paragraph_id': 31, 'start_character': 99, 'end_paragraph_id': 31, 'end_character': 114, 'bleu_score': 1.0, 'section': 'Section::::Development.\n'}]}]