Question: founder of londons royal exchange in the 16th century
[{'answer': 'Thomas Gresham', 'provenance': [{'wikipedia_id': '421601', 'title': 'Royal Exchange, London', 'start_paragraph_id': 1, 'start_character': 81, 'end_paragraph_id': 1, 'end_character': 95, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '421601', 'title': 'Royal Exchange, London', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 582, 'bleu_score': 0.876249620239668, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11492028898156199594}, 'section': 'Section::::Abstract.'}]}]