Question: who was the first speaker of the house
[{'answer': 'Frederick Muhlenberg', 'provenance': [{'wikipedia_id': '2327080', 'title': 'List of Speakers of the United States House of Representatives', 'start_paragraph_id': 11, 'start_character': 206, 'end_paragraph_id': 11, 'end_character': 226, 'bleu_score': 1.0, 'section': 'Section::::List of speakers.\n'}]}]