Detailed Instructions: In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Q: Passage: SR 87 begins on the banks of the Mississippi River in Lauderdale County, just north of the mouth of the Hatchie River. The highway then passes through the community of Fulton, where it has an intersection with SR 207, which provides access to Fort Pillow State Park. SR 87 continues east through wooded areas and passes by the West Tennessee State Penitentiary before coming to the community of Cherry, where it has its first intersection with SR 371. The highway then goes east through farmland and has another intersection with SR 371 before coming to an intersection with US 51/SR 3 and entering the town of Henning. SR 87 enters downtown along Graves Avenue before having a short concurrency with SR 209 (Main Street). SR 87 then leaves Henning along Mc Farland Avenue and passes just south of Durhamville before continuing east and crossing into Haywood County.
Link Information: it flows generally south for 2320 mi Question: Which of the two rivers closest to where the SR 87 begins is longer?
A:
Answer: Mississippi River