Question: who developed and patented the electrical telegraph in the united states in 1837
[{'answer': 'Samuel Morse', 'provenance': [{'wikipedia_id': '9450', 'title': 'Electrical telegraph', 'start_paragraph_id': 3, 'start_character': 176, 'end_paragraph_id': 3, 'end_character': 188, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '9450', 'title': 'Electrical telegraph', 'start_paragraph_id': 24, 'start_character': 0, 'end_paragraph_id': 24, 'end_character': 684, 'bleu_score': 0.8934951959340871, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7104014286739615079}, 'section': 'Section::::History.:First working systems.\n'}]}]