Question: how many different species of birds are there in australia
[{'answer': '898', 'provenance': [{'wikipedia_id': '160118', 'title': 'Birds of Australia', 'start_paragraph_id': 1, 'start_character': 56, 'end_paragraph_id': 1, 'end_character': 59, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '160118', 'title': 'Birds of Australia', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 387, 'bleu_score': 0.9699161750394991, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 88527292718896785}, 'section': 'Section::::Abstract.'}]}]