Contemplate the data and tweets to guess whether the closing price of $rex will surge or decline at 2015-07-31. Please declare either Rise or Fall.
Context: date,open,high,low,close,adj-close,inc-5,inc-10,inc-15,inc-20,inc-25,inc-30
2015-07-17,1.0,1.7,-0.3,-1.3,-1.3,-0.4,-1.9,-1.9,-2.1,-2.4,-2.4
2015-07-20,1.7,2.6,-0.1,-1.7,-1.7,1.5,-0.1,-0.3,-0.4,-0.8,-0.7
2015-07-21,6.6,7.8,-1.9,-6.2,-6.2,6.8,6.0,5.9,6.0,5.7,5.7
2015-07-22,4.4,5.1,-0.5,-4.2,-4.2,8.7,9.8,9.8,10.2,9.9,10.0
2015-07-23,2.2,3.6,-0.3,-2.0,-2.0,7.5,10.9,11.2,11.8,11.8,11.8
2015-07-24,2.8,3.2,-1.4,-2.9,-2.9,7.0,12.8,13.5,14.4,14.6,14.6
2015-07-27,1.4,1.5,-1.2,-2.2,-2.2,5.5,13.5,14.9,15.9,16.5,16.6
2015-07-28,-0.0,1.1,-2.6,0.6,0.6,2.5,10.9,13.0,14.3,15.2,15.4
2015-07-29,-0.8,0.6,-2.6,0.7,0.7,0.6,8.0,11.2,12.5,13.7,14.0
2015-07-30,2.2,2.9,-0.2,-2.2,-2.2,1.6,7.9,12.4,14.0,15.4,15.9

2015-07-20: $rex - deutsche bank ag form 8.5 (ept/ri) rexam plc 
2015-07-23: $rex - bank of new york mellon corp. (the) form 8.3 - rexam plc 
2015-07-30: $rex - rexam plc half yearly report 
Answer:
Fall