Question: when did the great march of return start
[{'answer': '30 March 2018', 'provenance': [{'wikipedia_id': '56984243', 'title': '2018–19 Gaza border protests', 'start_paragraph_id': 1, 'start_character': 3, 'end_paragraph_id': 1, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '56984243', 'title': '2018–19 Gaza border protests', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 608, 'bleu_score': 0.8863233569905291, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8480591624535970432}, 'section': 'Section::::Abstract.'}]}]