Question: who is the new person on chicago pd
[{'answer': 'Wendell Pierce', 'provenance': [{'wikipedia_id': '54143749', 'title': 'Chicago P.D. (season 5)', 'start_paragraph_id': 38, 'start_character': 88, 'end_paragraph_id': 38, 'end_character': 102, 'bleu_score': 1.0, 'section': 'Section::::Production.:Cast changes.\n'}]}, {'provenance': [{'wikipedia_id': '54143749', 'title': 'Chicago P.D. (season 5)', 'start_paragraph_id': 38, 'start_character': 0, 'end_paragraph_id': 38, 'end_character': 159, 'bleu_score': 0.8390782502060261, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6688097563849654682}, 'section': 'Section::::Production.:Cast changes.\n'}]}]