Question: who starred in papa don't preach video
[{'answer': 'Alex McArthur', 'provenance': [{'wikipedia_id': '563149', 'title': "Papa Don't Preach", 'start_paragraph_id': 20, 'start_character': 621, 'end_paragraph_id': 20, 'end_character': 634, 'bleu_score': 1.0, 'section': 'Section::::Music video.\n'}]}, {'answer': 'Madonna', 'provenance': [{'wikipedia_id': '563149', 'title': "Papa Don't Preach", 'start_paragraph_id': 1, 'start_character': 49, 'end_paragraph_id': 1, 'end_character': 56, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '563149', 'title': "Papa Don't Preach", 'start_paragraph_id': 20, 'start_character': 0, 'end_paragraph_id': 20, 'end_character': 1041, 'bleu_score': 0.9896637358043451, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1733232845805978922}, 'section': 'Section::::Music video.\n'}]}]