Question: who plays young jenna in 13 going on 30
[{'answer': 'Christa B. Allen', 'provenance': [{'wikipedia_id': '885160', 'title': 'Christa B. Allen', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '885160', 'title': 'Christa B. Allen', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 298, 'bleu_score': 0.96188712955549, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7161185271485068824}, 'section': 'Section::::Abstract.'}]}]