Question: who sings the step by step theme song
[{'answer': 'Frederick and Teresa James', 'provenance': [{'wikipedia_id': '654745', 'title': 'Step by Step (TV series)', 'start_paragraph_id': 33, 'start_character': 273, 'end_paragraph_id': 33, 'end_character': 299, 'bleu_score': 1.0, 'section': 'Section::::Production.:Theme song and title sequence.\n'}]}, {'provenance': [{'wikipedia_id': '654745', 'title': 'Step by Step (TV series)', 'start_paragraph_id': 33, 'start_character': 0, 'end_paragraph_id': 33, 'end_character': 869, 'bleu_score': 0.9610308113113821, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5928255575545214365}, 'section': 'Section::::Production.:Theme song and title sequence.\n'}]}]