Question: what is the last season of being mary jane
[{'answer': 'season 4', 'provenance': [{'wikipedia_id': '35553313', 'title': 'Being Mary Jane', 'start_paragraph_id': 22, 'start_character': 61, 'end_paragraph_id': 22, 'end_character': 69, 'bleu_score': 1.0, 'section': 'Section::::Cast and characters.:Recurring cast.\n'}]}]