Question: who is the sister of for king and country
[{'answer': 'Rebecca St. James', 'provenance': [{'wikipedia_id': '34604789', 'title': 'For King & Country (band)', 'start_paragraph_id': 4, 'start_character': 105, 'end_paragraph_id': 4, 'end_character': 122, 'bleu_score': 1.0, 'section': 'Section::::History.:Early music career.\n'}]}, {'provenance': [{'wikipedia_id': '34604789', 'title': 'For King & Country (band)', 'start_paragraph_id': 26, 'start_character': 495, 'end_paragraph_id': 26, 'end_character': 751, 'bleu_score': 0.678135032862729, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9896711079935124433}, 'section': 'Section::::Personal life.\n'}]}]