Question: when did mcdonald's open in the philippines
[{'answer': '1981', 'provenance': [{'wikipedia_id': '5671742', 'title': "History of McDonald's", 'start_paragraph_id': 137, 'start_character': 12, 'end_paragraph_id': 137, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Timeline.:1980s.\n'}]}, {'provenance': [{'wikipedia_id': '5671742', 'title': "History of McDonald's", 'start_paragraph_id': 139, 'start_character': 0, 'end_paragraph_id': 139, 'end_character': 83, 'bleu_score': 0.8385766789076251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13023828916914555684}, 'section': 'Section::::Timeline.:1980s.\n'}]}]