Which river is longer than the Mississippi River?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q1497', 'id': 0, 'label': 'Mississippi River'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q6781683', 'id': 1, 'label': 'Marys River'}], 'links': [{'name_': 'P974', 'source': 0, 'target': 1, 'label': 'tributary'}, {'name_': 'P403', 'source': 1, 'target': 0, 'label': 'mouth of the watercourse'}]}
The Mississippi River is a tributary of the Marys River, which has the Mississippi River as its mouth.
The Mississippi River is a tributary of the Mississippi River and its watercourse is the Marys River .
Which river is longer than the Mississippi River?</s>The Mississippi River is a tributary of the [unused1]Marys River                [unused2] , which has the Mississippi River as its mouth.
Which river is longer than the Mississippi River?</s>The Mississippi River is a tributary of the Marys River, which has the Mississippi River as its mouth.
Which river is longer than the Mississippi River?</s>The Mississippi River is a tributary of the Mississippi River and its watercourse is the [unused1]Marys River                [unused2] .
Which river is longer than the Mississippi River?</s>The Mississippi River is a tributary of the Mississippi River and its watercourse is the Marys River .
Which river is longer than the Mississippi River?</s>Mississippi River,0,Mississippi River,Mississippi River,tributary,[unused1]Marys River[unused2],[unused1]Marys River[unused2],mouth of the watercourse,Mississippi River,[unused1]Marys River[unused2],0,[unused1]Marys River[unused2]
Which river is longer than the Mississippi River?</s>Mississippi River,0,Mississippi River,Mississippi River,tributary,Marys River,Marys River,mouth of the watercourse,Mississippi River,Marys River,0,Marys River