Question: who is the actress that plays callie on the fosters
[{'answer': 'Maia Mitchell', 'provenance': [{'wikipedia_id': '12260545', 'title': 'Maia Mitchell', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 13, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '12260545', 'title': 'Maia Mitchell', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 511, 'bleu_score': 0.7363761100282631, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 687071673529423009}, 'section': 'Section::::Abstract.'}]}]