Question: how many presidents have there been in the philippines
[{'answer': 'Sixteen', 'provenance': [{'wikipedia_id': '886794', 'title': 'List of presidents of the Philippines', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 7, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '886794', 'title': 'List of presidents of the Philippines', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 501, 'bleu_score': 0.9257921357402691, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2769219476901097889}, 'section': 'Section::::Abstract.'}]}]