Which river in the United States is nicknamed Old Man River and is also the chief river of the second largest drainage system on the North American continent?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q30', 'id': 0, 'label': 'United States of America'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q4022', 'id': 1, 'label': 'river'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q49', 'id': 2, 'label': 'North America'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q1265', 'id': 3, 'label': 'Colorado River'}], 'links': [{'name_': 'P17', 'source': 0, 'target': 0, 'label': 'country'}, {'name_': 'P361', 'source': 0, 'target': 2, 'label': 'part of'}, {'name_': 'P1889', 'source': 1, 'target': 1, 'label': 'different from'}, {'name_': 'P527', 'source': 2, 'target': 0, 'label': 'has part(s)'}, {'name_': 'P17', 'source': 3, 'target': 0, 'label': 'country'}, {'name_': 'P31', 'source': 3, 'target': 1, 'label': 'instance of'}, {'name_': 'P30', 'source': 3, 'target': 2, 'label': 'continent'}]}
The Colorado River is a river in the United States of America, which is part of North America. The river is different from the other rivers in North America.
The United States of America is the location of the river , the Colorado River , which is found in the country of North America . The country is also home to the confluence of the rivers , the rivers of which , the River is also known as the American River .
Which river in the United States is nicknamed Old Man River and is also the chief river of the second largest drainage system on the North American continent?</s>The [unused1]Colorado River                [unused2] is a river in the United States of America, which is part of North America. The river is different from the other rivers in North America.
Which river in the United States is nicknamed Old Man River and is also the chief river of the second largest drainage system on the North American continent?</s>The Colorado River is a river in the United States of America, which is part of North America. The river is different from the other rivers in North America.
Which river in the United States is nicknamed Old Man River and is also the chief river of the second largest drainage system on the North American continent?</s>The United States of America is the location of the river , the [unused1]Colorado River                [unused2] , which is found in the country of North America . The country is also home to the confluence of the rivers , the rivers of which , the River is also known as the American River .
Which river in the United States is nicknamed Old Man River and is also the chief river of the second largest drainage system on the North American continent?</s>The United States of America is the location of the river , the Colorado River , which is found in the country of North America . The country is also home to the confluence of the rivers , the rivers of which , the River is also known as the American River .
Which river in the United States is nicknamed Old Man River and is also the chief river of the second largest drainage system on the North American continent?</s>United States of America,country,United States of America,United States of America,0,river,United States of America,part of,North America,United States of America,0,[unused1]Colorado River[unused2],river,0,United States of America,river,different from,river,river,0,North America,river,0,[unused1]Colorado River[unused2],North America,has part(s),United States of America,North America,0,river,North America,0,North America,North America,0,[unused1]Colorado River[unused2],[unused1]Colorado River[unused2],country,United States of America,[unused1]Colorado River[unused2],instance of,river,[unused1]Colorado River[unused2],continent,North America,[unused1]Colorado River[unused2],0,[unused1]Colorado River[unused2]
Which river in the United States is nicknamed Old Man River and is also the chief river of the second largest drainage system on the North American continent?</s>United States of America,country,United States of America,United States of America,0,river,United States of America,part of,North America,United States of America,0,Colorado River,river,0,United States of America,river,different from,river,river,0,North America,river,0,Colorado River,North America,has part(s),United States of America,North America,0,river,North America,0,North America,North America,0,Colorado River,Colorado River,country,United States of America,Colorado River,instance of,river,Colorado River,continent,North America,Colorado River,0,Colorado River