Question: when did the idea of the trinity start
[{'answer': 'the 4th century', 'provenance': [{'wikipedia_id': '30511', 'title': 'Trinity', 'start_paragraph_id': 19, 'start_character': 183, 'end_paragraph_id': 19, 'end_character': 198, 'bleu_score': 1.0, 'section': 'Section::::History.:First seven ecumenical councils.:First Council of Constantinople (381).\n'}]}, {'answer': 'Genesis 1 : 1 - 3'}]