Question: a monomer of nucleic acids is called what
[{'answer': 'nucleotides', 'provenance': [{'wikipedia_id': '21496', 'title': 'Nucleic acid', 'start_paragraph_id': 1, 'start_character': 178, 'end_paragraph_id': 1, 'end_character': 189, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '21496', 'title': 'Nucleic acid', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 467, 'bleu_score': 0.9304844600065421, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6095896540312205188}, 'section': 'Section::::Abstract.'}]}]