Question: where does the ohio river and the mississippi river meet
[{'answer': 'Cairo , Illinois', 'provenance': [{'wikipedia_id': '22388', 'title': 'Ohio River', 'start_paragraph_id': 149, 'start_character': 33, 'end_paragraph_id': 149, 'end_character': 49, 'bleu_score': 1.0, 'section': 'Section::::Cities and towns along the river.\n'}]}, {'answer': 'near the city of Cairo , Illinois'}, {'provenance': [{'wikipedia_id': '22388', 'title': 'Ohio River', 'start_paragraph_id': 32, 'start_character': 0, 'end_paragraph_id': 32, 'end_character': 350, 'bleu_score': 0.9224532597476071, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4648140548054011433}, 'section': 'Section::::Geography and hydrography.\n'}]}, {'provenance': [{'wikipedia_id': '18621204', 'title': 'List of locks and dams of the Ohio River', 'section': 'Section::::Evolution of navigation on the Ohio River.\n', 'start_paragraph_id': 3, 'end_paragraph_id': 3, 'meta': {'evidence_span': ['This is a list of locks and dams of the Ohio River, which begins at the confluence of the Allegheny and Monongahela rivers at The Point in Pittsburgh, Pennsylvania and ends at the confluence of the Ohio River and the Mississippi River, near Cairo, Illinois.', 'This is a list of locks and dams of the Ohio River, which begins at the confluence of the Allegheny and Monongahela rivers at The Point in Pittsburgh, Pennsylvania and ends at the confluence of the Ohio River and the Mississippi River, near Cairo, Illinois. In the early days of steamboat navigation on the Ohio River the major physical hurdle that delayed travel was the Falls of the Ohio near Louisville, Kentucky. Steamboats could only maneuver over the falls during times of high water, which were not consistent. It was more practical for the steamboats to drop off passengers and freight on one end of the falls and transport them over land to the opposite end of the falls to another steamboat. This resulted in Louisville becoming a customary last stop for vessels on both legs of the Ohio. If a steamboat desired to travel unimpeded though the falls without waiting for high water, a canal and lock system was needed in order to circumvent the falls.\rhighlight sentence(s) containing evidence, not only the answer', 'This is a list of locks and dams of the Ohio River, which begins at the confluence of the Allegheny and Monongahela rivers at The Point in Pittsburgh, Pennsylvania and ends at the confluence of the Ohio River and the Mississippi River, near Cairo, Illinois.']}}]}, {'provenance': [{'wikipedia_id': '22388', 'title': 'Ohio River', 'section': 'Section::::Cities and towns along the river.\n', 'start_paragraph_id': 149, 'end_paragraph_id': 149, 'meta': {'evidence_span': ['Other cities of interest include Cairo, Illinois, at the mouth of the Ohio on the Mississippi River and the southernmost and westernmost city on the river; Pittsburgh, Pennsylvania, the easternmost city on the river at the head or Forks of the Ohio, where the Allegheny and Monongahela Rivers join to create the Ohio; and Beaver, Pennsylvania, the site of colonial Fort McIntosh and the northernmost city on the river. It is 548 miles as the crow flies between Cairo and Pittsburgh, but 981 miles by water. Direct water travel the length of the river is obstructed by the Falls of the Ohio just below Louisville, Kentucky. The Ohio River Scenic Byway follows the Ohio River through Illinois, Indiana and Ohio ending at Steubenville, Ohio, on the river.', 'Other cities of interest include Cairo, Illinois, at the mouth of the Ohio on the Mississippi River and the southernmost and westernmost city on the river; Pittsburgh, Pennsylvania, the easternmost city on the river at the head or Forks of the Ohio, where the Allegheny and Monongahela Rivers join to create the Ohio; and Beaver, Pennsylvania, the site of colonial Fort McIntosh and the northernmost city on the river. It is 548 miles as the crow flies between Cairo and Pittsburgh, but 981 miles by water. Direct water travel the length of the river is obstructed by the Falls of the Ohio just below Louisville, Kentucky. The Ohio River Scenic Byway follows the Ohio River through Illinois, Indiana and Ohio ending at Steubenville, Ohio, on the river.\rhighlight sentence(s) containing evidence, not only the answer']}}]}]