Contemplate the data and tweets to guess whether the closing price of $abb 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
2015-07-17,0.2,0.2,-0.2,-0.6,-0.6,0.3,-0.6,0.4,2.0,3.4,4.5
2015-07-20,0.0,0.4,-0.2,0.3,0.3,-0.0,-0.8,-0.3,1.3,2.7,3.8
2015-07-21,0.5,0.8,-0.1,-0.3,-0.3,0.1,-0.4,-0.1,1.2,2.6,3.9
2015-07-22,-0.8,0.6,-0.9,-1.2,-1.2,1.2,1.0,0.9,2.0,3.5,4.8
2015-07-23,2.1,2.2,-0.3,1.3,1.3,-0.2,0.0,-0.4,0.5,1.9,3.1
2015-07-24,1.8,1.9,-0.2,-3.1,-2.3,1.7,2.2,1.7,2.5,3.9,5.1
2015-07-27,1.1,1.1,-0.2,-1.6,-1.6,2.5,3.4,3.2,3.6,5.0,6.3
2015-07-28,-0.8,0.2,-1.0,1.0,1.0,0.9,2.0,2.0,2.3,3.6,4.9
2015-07-29,-0.7,0.6,-0.7,0.4,0.4,0.3,1.4,1.7,1.8,2.8,4.1
2015-07-30,0.0,0.2,-0.4,0.5,0.5,-0.7,0.6,1.2,1.1,2.0,3.3

2015-07-22: reminder - $abb goes ex-dividend soon $inxx #dividends |abb abb ltd. eod data$abb $fro $juno $prta #abb #finance #finance
2015-07-29: $abb received a new alert. find out why at  #stocks #daytrading #trading #mkt  #nyse #nasdaq #markets 300
Answer: