Question: when was the last time mount shasta was active
[{'answer': 'about two centuries ago', 'provenance': [{'wikipedia_id': '76241', 'title': 'Mount Shasta', 'start_paragraph_id': 31, 'start_character': 233, 'end_paragraph_id': 31, 'end_character': 256, 'bleu_score': 1.0, 'section': 'Section::::Geology.:Volcanic status.\n'}]}, {'provenance': [{'wikipedia_id': '76241', 'title': 'Mount Shasta', 'start_paragraph_id': 31, 'start_character': 0, 'end_paragraph_id': 31, 'end_character': 256, 'bleu_score': 0.9560167778278961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18043695960744803141}, 'section': 'Section::::Geology.:Volcanic status.\n'}]}]