Question: when do the marian reforms happen in rtw
[{'answer': '107 BC', 'provenance': [{'wikipedia_id': '1399695', 'title': 'Marian reforms', 'start_paragraph_id': 1, 'start_character': 22, 'end_paragraph_id': 1, 'end_character': 28, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1399695', 'title': 'Marian reforms', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 134, 'bleu_score': 0.9181891462193901, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5438962740957841205}, 'section': 'Section::::Abstract.'}]}]