Question: what is the income level for lower middle class
[{'answer': '$32,500 to $60,000', 'provenance': [{'wikipedia_id': '6137171', 'title': 'American middle class', 'start_paragraph_id': 19, 'start_character': 417, 'end_paragraph_id': 19, 'end_character': 435, 'bleu_score': 1.0, 'section': 'Section::::Sub-divisions.:Lower middle class.\n'}]}, {'provenance': [{'wikipedia_id': '6137171', 'title': 'American middle class', 'start_paragraph_id': 19, 'start_character': 0, 'end_paragraph_id': 19, 'end_character': 434, 'bleu_score': 0.9720210313175831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9322153497585208455}, 'section': 'Section::::Sub-divisions.:Lower middle class.\n'}]}]