Question: what south american countries do not have access to the oceans
[{'answer': 'Bolivia', 'provenance': [{'wikipedia_id': '297503', 'title': 'Landlocked country', 'start_paragraph_id': 32, 'start_character': 495, 'end_paragraph_id': 32, 'end_character': 502, 'bleu_score': 1.0, 'section': 'Section::::Significance.:Political repercussions.\n'}]}, {'answer': 'Paraguay', 'provenance': [{'wikipedia_id': '297503', 'title': 'Landlocked country', 'start_paragraph_id': 32, 'start_character': 481, 'end_paragraph_id': 32, 'end_character': 489, 'bleu_score': 1.0, 'section': 'Section::::Significance.:Political repercussions.\n'}]}, {'provenance': [{'wikipedia_id': '297503', 'title': 'Landlocked country', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 215, 'bleu_score': 0.64924770295982, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6176045383955801710}, 'section': 'Section::::Abstract.'}]}]