Question: who played the grandson on mama's family
[{'answer': 'Allan Kayser', 'provenance': [{'wikipedia_id': '615501', 'title': "Mama's Family", 'start_paragraph_id': 28, 'start_character': 47, 'end_paragraph_id': 28, 'end_character': 59, 'bleu_score': 1.0, 'section': 'Section::::First-run syndication (Seasons 3–6).:Plot details.\n'}]}, {'provenance': [{'wikipedia_id': '615501', 'title': "Mama's Family", 'start_paragraph_id': 28, 'start_character': 0, 'end_paragraph_id': 28, 'end_character': 496, 'bleu_score': 0.866055865437457, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8710402547009496603}, 'section': 'Section::::First-run syndication (Seasons 3–6).:Plot details.\n'}]}]