Question: who is macbeth fighting in the beginning of the play
[{'answer': 'King Duncan', 'provenance': [{'wikipedia_id': '18866', 'title': 'Macbeth', 'start_paragraph_id': 2, 'start_character': 200, 'end_paragraph_id': 2, 'end_character': 211, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '18866', 'title': 'Macbeth', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 533, 'bleu_score': 0.978138775770484, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16367372603157148177}, 'section': 'Section::::Abstract.'}]}]