Question: when was the first fleet sent to australia
[{'answer': '13 May 1787', 'provenance': [{'wikipedia_id': '70061', 'title': 'First Fleet', 'start_paragraph_id': 1, 'start_character': 76, 'end_paragraph_id': 1, 'end_character': 87, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '70061', 'title': 'First Fleet', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 656, 'bleu_score': 0.9051631587465061, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1511732585988603376}, 'section': 'Section::::Abstract.'}]}]