Question: whos the green witch in once upon a time
[{'answer': 'Zelena', 'provenance': [{'wikipedia_id': '48163174', 'title': 'Zelena (Once Upon a Time)', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 6, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '48163174', 'title': 'Zelena (Once Upon a Time)', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 483, 'bleu_score': 0.7866001910361361, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9049307826315671304}, 'section': 'Section::::Development.:Characterization.\n'}]}]