Question: who played the female lead in the 1990 romantic comedy pretty woman
[{'answer': 'Julia Roberts', 'provenance': [{'wikipedia_id': '156745', 'title': 'Pretty Woman', 'start_paragraph_id': 1, 'start_character': 148, 'end_paragraph_id': 1, 'end_character': 161, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '156745', 'title': 'Pretty Woman', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 567, 'bleu_score': 0.8530117417858091, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10143093965397986422}, 'section': 'Section::::Abstract.'}]}]