Question: who played lucas mccain son on the rifleman
[{'answer': 'Chuck Connors', 'provenance': [{'wikipedia_id': '1888578', 'title': 'Johnny Crawford', 'start_paragraph_id': 1, 'start_character': 182, 'end_paragraph_id': 1, 'end_character': 195, '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': 0.7882028488131251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11762590677349341075}, 'section': 'Section::::Abstract.'}]}]