Question: who is the presiding officer in the georgia senate
[{'answer': 'President Pro Tempore', 'provenance': [{'wikipedia_id': '964172', 'title': 'Georgia State Senate', 'start_paragraph_id': 4, 'start_character': 350, 'end_paragraph_id': 4, 'end_character': 371, 'bleu_score': 1.0, 'section': 'Section::::Composition.\n'}]}, {'provenance': [{'wikipedia_id': '964172', 'title': 'Georgia State Senate', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 479, 'bleu_score': 0.9754554449993441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1640965704802192362}, 'section': 'Section::::Officers.\n'}]}]