Question: who built the first train in the world
[{'answer': 'Philip Layton', 'provenance': [{'wikipedia_id': '398236', 'title': 'Timeline of railway history', 'start_paragraph_id': 5, 'start_character': 214, 'end_paragraph_id': 5, 'end_character': 227, 'bleu_score': 1.0, 'section': 'Section::::16th-18th century.\n'}]}, {'provenance': [{'wikipedia_id': '398236', 'title': 'Timeline of railway history', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 316, 'bleu_score': 0.927897523069734, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13113620230084838498}, 'section': 'Section::::16th-18th century.\n'}]}]