Question: what is the lowest # on the fm dial
[{'answer': '87.5', 'provenance': [{'wikipedia_id': '1607203', 'title': 'FM broadcasting', 'start_paragraph_id': 3, 'start_character': 101, 'end_paragraph_id': 3, 'end_character': 105, 'bleu_score': 1.0, 'section': 'Section::::Broadcast bands.\n'}]}, {'provenance': [{'wikipedia_id': '1607203', 'title': 'FM broadcasting', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 172, 'bleu_score': 0.934334813046729, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17711327798048779712}, 'section': 'Section::::Broadcast bands.\n'}]}]