Question: how a river changes its characteristics when it reaches the lowland
[{'answer': 'warm', 'provenance': [{'wikipedia_id': '4240766', 'title': 'Upland and lowland', 'start_paragraph_id': 5, 'start_character': 115, 'end_paragraph_id': 5, 'end_character': 119, 'bleu_score': 1.0, 'section': 'Section::::Definitions.\n'}]}, {'answer': 'slow - flowing', 'provenance': [{'wikipedia_id': '4240766', 'title': 'Upland and lowland', 'start_paragraph_id': 12, 'start_character': 33, 'end_paragraph_id': 12, 'end_character': 52, 'bleu_score': 1.0, 'section': 'Section::::Lowland.\n'}]}, {'answer': 'coloured by sediment and organic matter'}, {'provenance': [{'wikipedia_id': '4240766', 'title': 'Upland and lowland', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 254, 'bleu_score': 0.737198875532956, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12989782290953911151}, 'section': 'Section::::Definitions.\n'}]}]