Question: who was elected to lead the cardassian union
[{'answer': 'Dukat', 'provenance': [{'wikipedia_id': '40844667', 'title': 'List of Star Trek: Deep Space Nine cast members', 'start_paragraph_id': 4, 'start_character': 75, 'end_paragraph_id': 4, 'end_character': 80, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]