Question: which group on the periodic table contains magnesium
[{'answer': 'group 2', 'provenance': [{'wikipedia_id': '487510', 'title': 'Group 12 element', 'start_paragraph_id': 13, 'start_character': 194, 'end_paragraph_id': 13, 'end_character': 201, 'bleu_score': 1.0, 'section': 'Section::::Chemistry.:Periodic trends.\n'}]}, {'provenance': [{'wikipedia_id': '487510', 'title': 'Group 12 element', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 1839, 'bleu_score': 0.9591123579049261, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2068372552040439904}, 'section': 'Section::::Chemistry.:Relationship with the alkaline earth metals.\n'}]}]