What is the second longest river in the world?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q4022', 'id': 0, 'label': 'river'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q1497', 'id': 1, 'label': 'Mississippi River'}], 'links': [{'name_': 'P1889', 'source': 0, 'target': 0, 'label': 'different from'}, {'name_': 'P5869', 'source': 0, 'target': 1, 'label': 'model item'}]}
The Mississippi River is a model of a river, but it is different from other rivers.
The Mississippi River is a river that is different from the river itself .
What is the second longest river in the world?</s>The [unused1]Mississippi River                [unused2] is a model of a river, but it is different from other rivers.
What is the second longest river in the world?</s>The Mississippi River is a model of a river, but it is different from other rivers.
What is the second longest river in the world?</s>The [unused1]Mississippi River                [unused2] is a river that is different from the river itself .
What is the second longest river in the world?</s>The Mississippi River is a river that is different from the river itself .
What is the second longest river in the world?</s>river,different from,river,river,model item,[unused1]Mississippi River[unused2],[unused1]Mississippi River[unused2],0,river,[unused1]Mississippi River[unused2],0,[unused1]Mississippi River[unused2]
What is the second longest river in the world?</s>river,different from,river,river,model item,Mississippi River,Mississippi River,0,river,Mississippi River,0,Mississippi River