Question: how many shipwrecks are there in the great lakes
[{'answer': '25,000', 'provenance': [{'wikipedia_id': '35745345', 'title': 'List of shipwrecks in the Great Lakes', 'start_paragraph_id': 1, 'start_character': 483, 'end_paragraph_id': 1, 'end_character': 489, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '35745345', 'title': 'List of shipwrecks in the Great Lakes', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 663, 'bleu_score': 0.9822204502117851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5344950509001850454}, 'section': 'Section::::Abstract.'}]}]