Question: who was the founder of the salvation army
[{'answer': 'Catherine and William Booth'}, {'provenance': [{'wikipedia_id': '88801', 'title': 'The Salvation Army', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 540, 'bleu_score': 0.690154259246579, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7950273892113671697}, 'section': 'Section::::Abstract.'}]}]