Question: who sang when this lousy war is over in oh what a lovely war
[{'answer': 'Colin Kembal', 'provenance': [{'wikipedia_id': '1070449', 'title': 'Oh, What a Lovely War!', 'start_paragraph_id': 28, 'start_character': 30, 'end_paragraph_id': 28, 'end_character': 42, 'bleu_score': 1.0, 'section': 'Section::::Musical numbers.\n'}]}, {'provenance': [{'wikipedia_id': '1070449', 'title': 'Oh, What a Lovely War!', 'start_paragraph_id': 45, 'start_character': 0, 'end_paragraph_id': 45, 'end_character': 56, 'bleu_score': 0.7598356856515921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 365642873304774700}, 'section': 'Section::::Musical numbers.\n'}]}]