Question: which type of weather front is typically associated with low pressure
[{'answer': 'precipitation', 'provenance': [{'wikipedia_id': '2188689', 'title': 'Weather front', 'start_paragraph_id': 2, 'start_character': 183, 'end_paragraph_id': 2, 'end_character': 196, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2188689', 'title': 'Weather front', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 1064, 'bleu_score': 0.9879148529393721, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6905999144649990171}, 'section': 'Section::::Surface weather analysis.\n'}]}]