Question: what were the reasons for the launching of the non cooperation movement
[{'answer': 'Jallianwala Bagh massacre', 'provenance': [{'wikipedia_id': '590728', 'title': 'Non-cooperation movement', 'start_paragraph_id': 4, 'start_character': 141, 'end_paragraph_id': 4, 'end_character': 166, 'bleu_score': 1.0, 'section': 'Section::::Factors leading to the movement.\n'}]}, {'answer': 'Rowlatt Act', 'provenance': [{'wikipedia_id': '590728', 'title': 'Non-cooperation movement', 'start_paragraph_id': 4, 'start_character': 121, 'end_paragraph_id': 4, 'end_character': 132, 'bleu_score': 1.0, 'section': 'Section::::Factors leading to the movement.\n'}]}, {'answer': 'oppressive policies of the British Indian government'}]