Utilize the data and tweets at hand to foresee if the closing price of $unh will elevate or diminish at 2015-07-31. Only answer with Rise or Fall.
Context: date,open,high,low,close,adj-close,inc-5,inc-10,inc-15,inc-20,inc-25,inc-30
2015-07-17,0.7,0.9,-0.1,-0.9,-0.9,0.5,-1.1,-1.1,-1.4,-1.8,-2.4
2015-07-20,1.1,1.3,-0.3,-1.0,-1.0,1.5,-0.1,-0.2,-0.4,-0.7,-1.3
2015-07-21,1.4,1.5,-0.4,-1.5,-1.5,2.3,1.4,1.3,1.1,0.9,0.3
2015-07-22,0.3,0.5,-0.4,-0.2,-0.2,1.6,1.8,1.4,1.3,1.0,0.7
2015-07-23,1.9,2.0,-0.5,-1.1,-1.1,1.8,2.9,2.3,2.3,2.1,1.8
2015-07-24,1.0,1.5,-0.3,-1.2,-1.2,2.0,3.7,3.3,3.4,3.2,2.9
2015-07-27,0.0,0.2,-1.0,-0.1,-0.1,1.2,3.4,3.1,3.2,3.2,3.0
2015-07-28,-2.3,0.0,-2.5,3.1,3.1,-1.7,0.0,0.0,0.1,0.1,-0.0
2015-07-29,0.2,0.5,-0.7,0.0,0.0,-1.5,-0.3,0.2,0.1,0.1,-0.0
2015-07-30,0.5,1.1,-0.8,-0.8,-0.8,-0.6,0.1,1.0,0.8,0.9,0.8

2015-07-18: our stock pick on $gequ nearly quadrupled in value in less than 2 weeks! major news:  $unh $hum $ci|$unh received a new alert. find out why at  #stocks #daytrading #trading #mkt  #nyse #nasd… 
2015-07-19: our stock pick on $gequ nearly quadrupled in value in less than 2 weeks! major news:  $unh $hum $ci|$unh:oppenheimer boosts unitedhealth group price target to $140.00 ...:
2015-07-20: our platinum subscribers saw their penny stock alerts gain over 350% in 2 weeks! big update:  $unh $hum $ci|wmt wal-mart stores, inc. stock message board$wmt $unh $iyt $pg #wmt #investing #finance
2015-07-21: #dow #stocks $unh unitedhealth group daily:-0.97% weekly:0.16% ytd:21.74% trend:41 / 100  
2015-07-22: amgn amgen, inc. shares$amgn $fb $ko $unh #amgn #stocks #investing
2015-07-23: anthem-cigna deal: and then there were 3?  $antm $ci $unh $aet $hum $hnt |unh unitedhealth group, inc. eod data$unh $jblu $mrw.l $anac #unh #share #investing|our stock pick on $gequ nearly quadrupled 
2015-07-24: regn regeneron pharmaceuticals, inc. message board posts$regn $vun.to $uwti $unh #regn #investing #nasdaq|ewz brazil ishares shares$ewz $celg $spxu $unh #ewz #pennystocks #finance|gbgm global gaming n
2015-07-25: our platinum subscribers saw their stock alerts gain 4,000% in 10 months! subscribe today:  $unh $hum $ci|unh unitedhealth group, inc. market cap$unh $uvxy $amzz $ge #unh #share #pennystocks|avxl anav
2015-07-27: valuation analysis for #unitedhealth group inc $unh via AT_USER 
Answer:
Rise