Question: when was the telephone released to the public
[{'answer': '25 June 1876', 'provenance': [{'wikipedia_id': '503734', 'title': 'Timeline of the telephone', 'start_paragraph_id': 31, 'start_character': 12, 'end_paragraph_id': 31, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::1876 to 1878.\n'}]}, {'provenance': [{'wikipedia_id': '503734', 'title': 'Timeline of the telephone', 'start_paragraph_id': 31, 'start_character': 0, 'end_paragraph_id': 31, 'end_character': 308, 'bleu_score': 0.957870874785216, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2189132332158380767}, 'section': 'Section::::1876 to 1878.\n'}]}]