Question: what is group 7 on the periodic table called
[{'answer': 'transition metals', 'provenance': [{'wikipedia_id': '483861', 'title': 'Group 7 element', 'start_paragraph_id': 1, 'start_character': 195, 'end_paragraph_id': 1, 'end_character': 212, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '483861', 'title': 'Group 7 element', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 212, 'bleu_score': 0.943604326170661, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2348174060705618199}, 'section': 'Section::::Abstract.'}]}]