Question: who's won the most premierships in afl
[{'answer': 'Essendon', 'provenance': [{'wikipedia_id': '87216', 'title': 'List of VFL/AFL premiers', 'start_paragraph_id': 3, 'start_character': 11, 'end_paragraph_id': 3, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Carlton', 'provenance': [{'wikipedia_id': '87216', 'title': 'List of VFL/AFL premiers', 'start_paragraph_id': 15, 'start_character': 17, 'end_paragraph_id': 15, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Minor grade premierships.:VFL/AFL Reserves premierships.\n'}]}]