Question: what relationship is whitney to bianca in eastenders
[{'answer': 'adoptive daughter'}, {'provenance': [{'wikipedia_id': '16368202', 'title': 'Whitney Dean', 'start_paragraph_id': 1, 'start_character': 25, 'end_paragraph_id': 1, 'end_character': 1135, 'bleu_score': 0.8689629708206, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 423546319717034204}, 'section': 'Section::::Abstract.'}]}]