Question: who plays stewart's girlfriend on big bang
[{'answer': 'Lauren Lapkus', 'provenance': [{'wikipedia_id': '16709386', 'title': 'List of The Big Bang Theory and Young Sheldon characters', 'start_paragraph_id': 57, 'start_character': 49, 'end_paragraph_id': 57, 'end_character': 62, 'bleu_score': 1.0, 'section': 'Section::::Main characters.:"The Big Bang Theory" main characters.:Stuart.\n'}]}, {'provenance': [{'wikipedia_id': '16709386', 'title': 'List of The Big Bang Theory and Young Sheldon characters', 'start_paragraph_id': 139, 'start_character': 0, 'end_paragraph_id': 139, 'end_character': 115, 'bleu_score': 0.647285941823006, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10923419799493835515}, 'section': 'Section::::Supporting characters.:"The Big Bang Theory" supporting characters.:Denise.\n'}]}]