Question: who discovered that everything is made of atoms
[{'answer': 'John Dalton', 'provenance': [{'wikipedia_id': '902', 'title': 'Atom', 'start_paragraph_id': 10, 'start_character': 20, 'end_paragraph_id': 10, 'end_character': 31, 'bleu_score': 1.0, 'section': 'Section::::History of atomic theory.:First evidence-based theory.\n'}]}, {'provenance': [{'wikipedia_id': '902', 'title': 'Atom', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 694, 'bleu_score': 0.90577926320281, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3725370866995292776}, 'section': 'Section::::History of atomic theory.:First evidence-based theory.\n'}]}]