Question: where does hydrogen peroxide come from in the body
[{'answer': 'nearly all living cells', 'provenance': [{'wikipedia_id': '14403', 'title': 'Hydrogen peroxide', 'start_paragraph_id': 49, 'start_character': 296, 'end_paragraph_id': 49, 'end_character': 319, 'bleu_score': 1.0, 'section': 'Section::::Biological function.\n'}]}, {'provenance': [{'wikipedia_id': '14403', 'title': 'Hydrogen peroxide', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2021420958734723105}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '14403', 'title': 'Hydrogen peroxide', 'start_paragraph_id': 81, 'start_character': 0, 'end_paragraph_id': 81, 'end_character': 639, 'bleu_score': 0.9109233358462071, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2021420958734723105}, 'section': 'Section::::Uses.:Disinfectant.:Use in alternative medicine.\n'}]}, {'provenance': [{'wikipedia_id': '14403', 'title': 'Hydrogen peroxide', 'start_paragraph_id': 49, 'start_character': 0, 'end_paragraph_id': 49, 'end_character': 515, 'bleu_score': 0.9757530668325981, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2021420958734723105}, 'section': 'Section::::Biological function.\n'}]}, {'provenance': [{'wikipedia_id': '14403', 'title': 'Hydrogen peroxide', 'section': 'Section::::Biological function.\n', 'start_paragraph_id': 49, 'end_paragraph_id': 49, 'meta': {'evidence_span': ['is developed in nearly all living cells as an important antioxidant agent.', 'Hydrogen peroxide is formed in human and animals as a short-lived product in biochemical processes and is toxic to cells. The toxicity is due to oxidation of proteins, membrane lipids and DNA by the peroxide ions. The class of biological enzymes called SOD (superoxide dismutase) is developed in nearly all living cells as an important antioxidant agent. They promote the disproportionation of superoxide into']}}]}]