Question: who plays bernadette on the big bang theory
[{'answer': 'Melissa Ivy Rauch', 'provenance': [{'wikipedia_id': '10030613', 'title': 'Melissa Rauch', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '10030613', 'title': 'Melissa Rauch', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 159, 'bleu_score': 0.729892616211392, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 629154046004699081}, 'section': 'Section::::Abstract.'}]}]