Question: which element is most present in the human body
[{'answer': 'oxygen', 'provenance': [{'wikipedia_id': '13248239', 'title': 'Composition of the human body', 'start_paragraph_id': 3, 'start_character': 69, 'end_paragraph_id': 3, 'end_character': 75, 'bleu_score': 1.0, 'section': 'Section::::Elements.\n'}]}, {'provenance': [{'wikipedia_id': '13248239', 'title': 'Composition of the human body', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 623, 'bleu_score': 0.9180971937247071, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5068578781868073708}, 'section': 'Section::::Elements.:Elemental composition list.\n'}]}]