Question: when did henry became head of the church
[{'answer': '1536', 'provenance': [{'wikipedia_id': '12004680', 'title': 'Supreme Head of the Church of England', 'start_paragraph_id': 1, 'start_character': 384, 'end_paragraph_id': 1, 'end_character': 388, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]