Question: when is the day honoring the roman god of war
[{'answer': 'March 1', 'provenance': [{'wikipedia_id': '19638032', 'title': 'Mars (mythology)', 'start_paragraph_id': 74, 'start_character': 310, 'end_paragraph_id': 74, 'end_character': 317, 'bleu_score': 1.0, 'section': 'Section::::Name and cult epithets.:In Roman religion.:Mars Pater.\n'}]}]