Question: who plays bob duncan on good luck charlie
[{'answer': 'Eric Allan Kramer', 'provenance': [{'wikipedia_id': '6047036', 'title': 'Eric Allan Kramer', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6047036', 'title': 'Eric Allan Kramer', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 328, 'bleu_score': 0.729257172387293, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15043673671024521291}, 'section': 'Section::::Abstract.'}]}]