Question: who did nicola walker play in four weddings and a funeral
[{'answer': 'the irritating folk singer', 'provenance': [{'wikipedia_id': '4243285', 'title': 'Nicola Walker', 'start_paragraph_id': 24, 'start_character': 104, 'end_paragraph_id': 24, 'end_character': 130, 'bleu_score': 1.0, 'section': 'Section::::Career.:Film.\n'}]}, {'provenance': [{'wikipedia_id': '4243285', 'title': 'Nicola Walker', 'start_paragraph_id': 24, 'start_character': 0, 'end_paragraph_id': 24, 'end_character': 332, 'bleu_score': 0.9645876452711911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2584840175673739088}, 'section': 'Section::::Career.:Film.\n'}]}]