Question: sydney is on the bank of which river
[{'answer': 'the Hawkesbury River', 'provenance': [{'wikipedia_id': '27862', 'title': 'Sydney', 'start_paragraph_id': 19, 'start_character': 237, 'end_paragraph_id': 19, 'end_character': 257, 'bleu_score': 1.0, 'section': 'Section::::History.:Establishment of the colony.:Conflicts.\n'}]}, {'provenance': [{'wikipedia_id': '27862', 'title': 'Sydney', 'start_paragraph_id': 34, 'start_character': 0, 'end_paragraph_id': 34, 'end_character': 262, 'bleu_score': 0.637895922884395, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2912672821644763134}, 'section': 'Section::::Geography.:Topography.\n'}]}]