Examine the data and tweets to deduce if the closing price of $agfs will boost or lower at 2015-07-21. Kindly confirm either Rise or Fall.
Context: date,open,high,low,close,adj-close,inc-5,inc-10,inc-15,inc-20,inc-25,inc-30
2015-07-07,-1.0,1.7,-1.3,1.5,1.5,-2.2,-6.0,-8.0,-9.5,-10.6,-10.9
2015-07-08,0.2,0.6,-0.8,-0.2,-0.2,-1.3,-4.8,-7.0,-8.5,-9.9,-10.4
2015-07-09,1.5,1.5,-0.5,-1.2,-1.2,0.2,-2.7,-5.2,-6.8,-8.3,-9.0
2015-07-10,1.4,1.7,-0.6,-1.1,-1.1,1.4,-0.9,-3.4,-5.1,-6.7,-7.6
2015-07-13,-0.6,0.2,-3.4,0.6,0.6,0.7,-0.8,-3.3,-5.2,-6.8,-7.8
2015-07-14,0.0,0.8,-1.6,0.0,0.0,0.3,-0.0,-2.7,-4.6,-6.2,-7.4
2015-07-15,-0.5,0.7,-0.6,0.4,0.4,-0.3,-0.2,-2.5,-4.4,-5.9,-7.3
2015-07-16,1.1,1.3,-0.1,-0.8,-0.8,0.3,0.7,-1.1,-3.2,-4.7,-6.2
2015-07-17,0.5,1.5,-0.4,-0.7,-0.7,0.9,1.4,-0.0,-2.0,-3.6,-5.1
2015-07-20,0.8,1.5,-0.2,-0.0,-0.0,0.7,1.3,0.5,-1.5,-3.1,-4.6


Answer:
Fall