Question: who is the boy actor in the rifleman
[{'answer': 'John Ernest Crawford', 'provenance': [{'wikipedia_id': '1888578', 'title': 'Johnny Crawford', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1888578', 'title': 'Johnny Crawford', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 348, 'bleu_score': 0.8232658949909031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11539010497903014784}, 'section': 'Section::::Abstract.'}]}]