Question: water rises in the xylem tubes due to
[{'answer': 'Pressure flow', 'provenance': [{'wikipedia_id': '46675', 'title': 'Xylem', 'start_paragraph_id': 18, 'start_character': 12, 'end_paragraph_id': 18, 'end_character': 25, 'bleu_score': 1.0, 'section': 'Section::::Main function – upwards water transport.\n'}]}, {'answer': 'Transpirational pull', 'provenance': [{'wikipedia_id': '46675', 'title': 'Xylem', 'start_paragraph_id': 22, 'start_character': 0, 'end_paragraph_id': 22, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Main function – upwards water transport.\n'}]}, {'answer': 'Root pressure', 'provenance': [{'wikipedia_id': '46675', 'title': 'Xylem', 'start_paragraph_id': 20, 'start_character': 547, 'end_paragraph_id': 20, 'end_character': 560, 'bleu_score': 1.0, 'section': 'Section::::Main function – upwards water transport.\n'}]}]