Question: who wrote the health and safety at work act
[{'answer': 'Secretary of State for Employment', 'provenance': [{'wikipedia_id': '4389830', 'title': 'Health and Safety at Work etc. Act 1974', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 33, 'bleu_score': 1.0, 'section': 'Section::::Background.\n'}]}, {'answer': 'Michael Foot'}]