Question: when was the amrit bazar patrika started in bangla
[{'answer': '20 February 1868', 'provenance': [{'wikipedia_id': '8639934', 'title': 'Amrita Bazar Patrika', 'start_paragraph_id': 2, 'start_character': 14, 'end_paragraph_id': 2, 'end_character': 30, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]