Question: who plays the mother in how i met your mother
[{'answer': 'Tracy McConnell', 'provenance': [{'wikipedia_id': '40262098', 'title': 'The Mother (How I Met Your Mother)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '40262098', 'title': 'The Mother (How I Met Your Mother)', 'start_paragraph_id': 1, 'start_character': 29, 'end_paragraph_id': 1, 'end_character': 487, 'bleu_score': 0.875608246956708, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8219777769771189964}, 'section': 'Section::::Abstract.'}]}]