Question: when did antarctica take the form it has today
[{'answer': 'around 35 million years ago', 'provenance': [{'wikipedia_id': '6508669', 'title': 'Geology of Antarctica', 'start_paragraph_id': 2, 'start_character': 162, 'end_paragraph_id': 2, 'end_character': 189, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6508669', 'title': 'Geology of Antarctica', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 189, 'bleu_score': 0.9383861709333501, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1135142440521588560}, 'section': 'Section::::Abstract.'}]}]