Question: what kind of music did whitney houston sing
[{'answer': 'crossover', 'provenance': [{'wikipedia_id': '34071', 'title': 'Whitney Houston', 'start_paragraph_id': 1, 'start_character': 491, 'end_paragraph_id': 1, 'end_character': 500, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '34071', 'title': 'Whitney Houston', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 695, 'bleu_score': 0.6716531318554291, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17127228804399569823}, 'section': 'Section::::Abstract.'}]}]