Question: who elects head of state government in great britain
[{'answer': 'Queen Elizabeth II', 'provenance': [{'wikipedia_id': '25318118', 'title': 'Government of the United Kingdom', 'start_paragraph_id': 2, 'start_character': 732, 'end_paragraph_id': 2, 'end_character': 750, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '25318118', 'title': 'Government of the United Kingdom', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 904, 'bleu_score': 0.9871375943883031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 843572471701426511}, 'section': 'Section::::Abstract.'}]}]