Question: what is the oldest company in the dow jones index
[{'answer': 'General Electric', 'provenance': [{'wikipedia_id': '47361', 'title': 'Dow Jones Industrial Average', 'start_paragraph_id': 8, 'start_character': 86, 'end_paragraph_id': 8, 'end_character': 102, 'bleu_score': 1.0, 'section': 'Section::::Former components.\n'}]}, {'provenance': [{'wikipedia_id': '47361', 'title': 'Dow Jones Industrial Average', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 245, 'bleu_score': 0.695301960418305, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13505474025101354020}, 'section': 'Section::::Former components.\n'}]}]