Question: who plays tracy in how i met your mother
[{'answer': 'Cristin Milioti', 'provenance': [{'wikipedia_id': '27511223', 'title': 'Cristin Milioti', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '27511223', 'title': 'Cristin Milioti', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 483, 'bleu_score': 0.776973681462624, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6603559930560372735}, 'section': 'Section::::Abstract.'}]}]