Question: the first element on the periodic table is
[{'answer': 'hydrogen', 'provenance': [{'wikipedia_id': '23053', 'title': 'Periodic table', 'start_paragraph_id': 3, 'start_character': 36, 'end_paragraph_id': 3, 'end_character': 44, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Hydrogen', 'provenance': [{'wikipedia_id': '23053', 'title': 'Periodic table', 'start_paragraph_id': 3, 'start_character': 36, 'end_paragraph_id': 3, 'end_character': 44, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '23053', 'title': 'Periodic table', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 452, 'bleu_score': 0.9432477065696491, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7227411857934128457}, 'section': 'Section::::Overview.\n'}]}, {'provenance': [{'wikipedia_id': '23053', 'title': 'Periodic table', 'section': 'Section::::Abstract.', 'start_paragraph_id': 3, 'end_paragraph_id': 3, 'meta': {'evidence_span': ['The elements from atomic numbers 1 (hydrogen) through 118 (oganesson)', 'The elements from atomic numbers 1 (hydrogen) through 118 (oganesson) have been discovered or synthesized, completing seven full rows of the periodic table.', 'The elements from atomic numbers 1 (hydrogen) through 118 (oganesson) have been discovered or synthesized, completing seven full rows of the periodic table.']}}]}]