Question: what types of structures have the same function but do not share a common ancestry
[{'answer': 'analogous structures', 'provenance': [{'wikipedia_id': '82804', 'title': 'Convergent evolution', 'start_paragraph_id': 1, 'start_character': 133, 'end_paragraph_id': 1, 'end_character': 153, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '82804', 'title': 'Convergent evolution', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 819, 'bleu_score': 0.9828310228624961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11903351651423919258}, 'section': 'Section::::Abstract.'}]}]