Which South American river is the second longest through the Amazon Rainforest?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q6173448', 'id': 0, 'label': 'Wikipedia:Vital articles/Level/4'}, {'type': 'INTERNAL', 'name_': 'Q155', 'id': 1, 'label': 'Brazil'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q18', 'id': 2, 'label': 'South America'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q127892', 'id': 3, 'label': 'Paraná River'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q177567', 'id': 4, 'label': 'Amazon rainforest'}, {'type': 'INTERNAL', 'name_': 'Q372019', 'id': 5, 'label': 'Amazônia National Park'}, {'type': 'INTERNAL', 'name_': 'Q332381', 'id': 6, 'label': 'Jaú National Park'}], 'links': [{'name_': 'P5008', 'source': 1, 'target': 0, 'label': 'on focus list of Wikimedia project'}, {'name_': 'P17', 'source': 1, 'target': 1, 'label': 'country'}, {'name_': 'P30', 'source': 1, 'target': 2, 'label': 'continent'}, {'name_': 'P206', 'source': 1, 'target': 3, 'label': 'located in or next to body of water'}, {'name_': 'P5008', 'source': 2, 'target': 0, 'label': 'on focus list of Wikimedia project'}, {'name_': 'P527', 'source': 2, 'target': 1, 'label': 'has part(s)'}, {'name_': 'P5008', 'source': 3, 'target': 0, 'label': 'on focus list of Wikimedia project'}, {'name_': 'P17', 'source': 3, 'target': 1, 'label': 'country'}, {'name_': 'P30', 'source': 3, 'target': 2, 'label': 'continent'}, {'name_': 'P17', 'source': 5, 'target': 1, 'label': 'country'}, {'name_': 'P527', 'source': 5, 'target': 4, 'label': 'has part(s)'}, {'name_': 'P5008', 'source': 6, 'target': 0, 'label': 'on focus list of Wikimedia project'}, {'name_': 'P17', 'source': 6, 'target': 1, 'label': 'country'}, {'name_': 'P527', 'source': 6, 'target': 4, 'label': 'has part(s)'}]}