Question: who played the witch in hansel and gretel
[{'answer': 'Famke Janssen', 'provenance': [{'wikipedia_id': '27223546', 'title': 'Hansel & Gretel: Witch Hunters', 'start_paragraph_id': 1, 'start_character': 342, 'end_paragraph_id': 1, 'end_character': 355, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '27223546', 'title': 'Hansel & Gretel: Witch Hunters', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 56, 'bleu_score': 0.7598356856515921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7610333169299177144}, 'section': 'Section::::Cast.\n'}]}]