Question: who combined the electric and magnetic phenomena into one unified theory
[{'answer': 'James Clerk Maxwell', 'provenance': [{'wikipedia_id': '776713', 'title': 'Unified field theory', 'start_paragraph_id': 21, 'start_character': 69, 'end_paragraph_id': 21, 'end_character': 88, 'bleu_score': 1.0, 'section': 'Section::::History.:Classic theory.\n'}]}, {'provenance': [{'wikipedia_id': '776713', 'title': 'Unified field theory', 'start_paragraph_id': 21, 'start_character': 0, 'end_paragraph_id': 21, 'end_character': 1012, 'bleu_score': 0.9874601949752461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16694671582858273745}, 'section': 'Section::::History.:Classic theory.\n'}]}]