Question: who sang please don't go in the 90's
[{'answer': 'KWS', 'provenance': [{'wikipedia_id': '4555821', 'title': 'KWS (band)', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 3, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4555821', 'title': 'KWS (band)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 256, 'bleu_score': 0.6252479655998591, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11875526077595147741}, 'section': 'Section::::Abstract.'}]}]