Question: who is credited with developing the periodic table
[{'answer': 'Dmitri Ivanovich Mendeleev', 'provenance': [{'wikipedia_id': '60633', 'title': 'Dmitri Mendeleev', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 26, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '60633', 'title': 'Dmitri Mendeleev', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 349, 'bleu_score': 0.590537332347851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10430677446448791980}, 'section': 'Section::::Abstract.'}]}]