Question: who described the basic mechanism of steam reaction
[{'answer': 'Italian Giovanni Branca', 'provenance': [{'wikipedia_id': '29374', 'title': 'Steam turbine', 'start_paragraph_id': 4, 'start_character': 343, 'end_paragraph_id': 4, 'end_character': 366, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'answer': 'John Wilkins in England', 'provenance': [{'wikipedia_id': '29374', 'title': 'Steam turbine', 'start_paragraph_id': 4, 'start_character': 378, 'end_paragraph_id': 4, 'end_character': 401, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'answer': 'Hero of Alexandria in Roman Egypt'}, {'answer': 'Taqi al - Din in Ottoman Egypt'}, {'provenance': [{'wikipedia_id': '29374', 'title': 'Steam turbine', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 856, 'bleu_score': 0.9866213202385071, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12695779926315487052}, 'section': 'Section::::History.\n'}]}]