Question: what season did mccoy join law and order
[{'answer': 'season five', 'provenance': [{'wikipedia_id': '1865101', 'title': 'Jack McCoy', 'start_paragraph_id': 4, 'start_character': 143, 'end_paragraph_id': 4, 'end_character': 154, 'bleu_score': 1.0, 'section': 'Section::::Character overview.\n'}]}, {'provenance': [{'wikipedia_id': '1865101', 'title': 'Jack McCoy', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 1262, 'bleu_score': 0.9899746208772191, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4302915809703805159}, 'section': 'Section::::Character overview.\n'}]}]