Question: when does a baby's vision fully develop
[{'answer': '4 -- 5 months'}, {'provenance': [{'wikipedia_id': '5209682', 'title': 'Infant visual development', 'start_paragraph_id': 13, 'start_character': 0, 'end_paragraph_id': 13, 'end_character': 1740, 'bleu_score': 0.9597407489492481, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6191143373531333136}, 'section': 'Section::::Development.:Depth perception.\n'}]}]