Question: who played matron in the carry on films
[{'answer': 'Hattie Jacques', 'provenance': [{'wikipedia_id': '6555711', 'title': 'Carry On Matron', 'start_paragraph_id': 1, 'start_character': 196, 'end_paragraph_id': 1, 'end_character': 210, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6555711', 'title': 'Carry On Matron', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 650, 'bleu_score': 0.9810405040225261, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17691973381084510654}, 'section': 'Section::::Plot.\n'}]}]