Question: when did the first car phone come out
[{'answer': '1946', 'provenance': [{'wikipedia_id': '789395', 'title': 'Car phone', 'start_paragraph_id': 2, 'start_character': 90, 'end_paragraph_id': 2, 'end_character': 94, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]