Question: who are the members of three days grace
[{'answer': 'Brad Walst', 'provenance': [{'wikipedia_id': '576533', 'title': 'Three Days Grace', 'start_paragraph_id': 1, 'start_character': 235, 'end_paragraph_id': 1, 'end_character': 245, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Neil Sanderson', 'provenance': [{'wikipedia_id': '576533', 'title': 'Three Days Grace', 'start_paragraph_id': 1, 'start_character': 207, 'end_paragraph_id': 1, 'end_character': 221, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Barry Stock', 'provenance': [{'wikipedia_id': '576533', 'title': 'Three Days Grace', 'start_paragraph_id': 1, 'start_character': 256, 'end_paragraph_id': 1, 'end_character': 267, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Matt Walst', 'provenance': [{'wikipedia_id': '576533', 'title': 'Three Days Grace', 'start_paragraph_id': 1, 'start_character': 421, 'end_paragraph_id': 1, 'end_character': 431, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]