Question: who played jennifer in the back to the future movies
[{'answer': 'Claudia Grace Wells', 'provenance': [{'wikipedia_id': '987194', 'title': 'Claudia Wells', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '987194', 'title': 'Claudia Wells', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 155, 'bleu_score': 0.6859608405245411, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3525664342439007075}, 'section': 'Section::::Abstract.'}]}]