Question: what does the ductus arteriosus and the foramen ovale become at birth
[{'answer': 'ligamentum arteriosum', 'provenance': [{'wikipedia_id': '712723', 'title': 'Ductus arteriosus', 'start_paragraph_id': 1, 'start_character': 325, 'end_paragraph_id': 1, 'end_character': 346, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '712723', 'title': 'Ductus arteriosus', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 346, 'bleu_score': 0.6616182377799831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14381823359571421119}, 'section': 'Section::::Abstract.'}]}]