Question: what are constructed waterways that connect natural waterways
[{'answer': 'artificial canals', 'provenance': [{'wikipedia_id': '327786', 'title': 'Intracoastal Waterway', 'start_paragraph_id': 1, 'start_character': 397, 'end_paragraph_id': 1, 'end_character': 414, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '327786', 'title': 'Intracoastal Waterway', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 516, 'bleu_score': 0.9130050572547871, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16727601755755215715}, 'section': 'Section::::Abstract.'}]}]