With the help of the data and tweets given, can you forecast whether the closing price of $mrk will climb or drop at 2017-08-21? Please state either Rise or Fall.
Context: date,open,high,low,close,adj-close,inc-5,inc-10,inc-15,inc-20,inc-25,inc-30
2017-08-07,0.2,0.4,-0.3,-0.4,-0.4,0.8,0.7,0.3,0.2,0.4,0.9
2017-08-08,0.4,0.6,-0.2,-0.8,-0.8,1.2,1.5,1.2,1.1,1.1,1.5
2017-08-09,-0.1,0.4,-0.4,0.3,0.3,0.6,1.3,0.9,0.8,0.7,1.1
2017-08-10,0.3,0.6,-0.0,-0.5,-0.5,0.7,1.6,1.3,1.2,1.2,1.5
2017-08-11,0.1,0.9,-0.2,0.3,0.3,0.1,1.0,1.0,0.8,0.8,1.0
2017-08-14,0.4,0.5,-0.1,0.5,0.5,-0.4,0.3,0.5,0.4,0.3,0.5
2017-08-15,0.4,0.8,-0.0,-0.3,-0.3,-0.1,0.4,0.8,0.6,0.6,0.7
2017-08-16,-0.4,0.4,-0.6,0.3,0.3,-0.3,-0.0,0.6,0.3,0.3,0.3
2017-08-17,1.5,1.9,-0.0,-1.4,-1.4,0.9,1.1,1.8,1.6,1.6,1.6
2017-08-18,0.5,0.5,-0.5,-0.6,-0.6,1.2,1.4,2.1,2.1,2.1,2.1

2017-08-07: buysideclosing imbalances $gm $cl $vsh $cnp $mrk $bk $ups $mplx $apc $por $clf $aa $pep $bwa $twx $mor $syy $nycb  |merck &amp; company, inc. $mrk shares sold by first national bank of omaha |q2 earni
2017-08-08: jupiter asset management ltd. has $9,229,000 stake in merck &amp; company, inc. $mrk |jupiter asset management ltd. has $9,229,000 stake in merck &amp; company, inc. $mrk |rt AT_USER bpi's post #asco 
2017-08-09: AT_USER thanks for rt! see vista partners #investingforlife #tech #biotech  $aapl $dglt¡­ |sns financial group llc invests $561,000 in merck &amp; company, inc. $mrk |sns financial group llc invests $
2017-08-10: $ge $ibm $jnj $jpm $ko $mcd $mmm $mrk $msft $pep $pfe $pg $sbux $t $vz $wfc $xom   - 2/2|sellsideclosing imbalances $jnj $twx $mrk $wfc $pfe $jpm $bcr $unh $tmo $bti $col $dal $mo $k $unp $hon $nrg $c
2017-08-11: continental advisors llc reduces stake in merck &amp; company, inc. $mrk |continental advisors llc reduces stake in merck &amp; company, inc. $mrk |continental advisors llc reduces stake in merck &amp
2017-08-12: rt AT_USER .AT_USER outlines our research collaboration with #merck to fight the rise in #antibioticresistance |rt AT_USER why beigene soared 56.6% in july AT_USER #stocks $mrk, $celg, $bmy, $bgne |me
2017-08-13: merck &amp; company, inc. $mrk rating reiterated by deutsche bank ag |stellar capital management llc decreases stake in merck &amp; company, inc. $mrk |farmhouse investment management llc takes positi
2017-08-14: rt AT_USER merck ceo kenneth frazier happily lobbies #usa government for artificially high drug prices so he can gouge me. $mrk #¡­|rt AT_USER wow. "just look at what he did to ken. i'm not sticking m
2017-08-15: rt AT_USER yumanity ceo tony coles stands w $mrk's ken frazier in AT_USER op-ed:  |rt AT_USER on the fly: top stock stories for tuesday $intc $mrk $uaa $ua $wmt $jnj $tjx $hd $extr $syf $brk.a $brk.b 
2017-08-16: rt AT_USER on the fly: top stock stories for wednesday $jpm $jnj $cpb $utx $blk $mmm $intc $uaa $ua $mrk $ibm $tgt $aapl $lpla¡­ |rt AT_USER 5 things for #pharma #marketers to know: tues, aug 15 $jnj 
2017-08-17: rt AT_USER AT_USER AT_USER manufacturer level big pharma i.e. $mrk , $jnj , $abt ,  but inside local pharmacies too, error re¡­|rt AT_USER $nwbo $kite $mrk $azn $juno $cldx $bmy $pfe $gsk if dcvax-l i
2017-08-18: rt AT_USER $nwbo $kite $mrk $azn $juno $cldx $bmy $pfe $gsk if dcvax-l is approved, w/9k annual cases, w/450m shares - share price¡­|investors buy merck &amp; company, inc. $mrk on weakness |investors
2017-08-19: rt AT_USER merck and glaxosmithkline production issues lead to global shortage of hepatitis b vaccine  $mrk $¡­|rt AT_USER week in review: how trump's policies moved stocks $mrk $intc $ua $uaa $cpb $j
2017-08-20: former #fda chief praises AT_USER op-ed on $mrk ceo exit trump manufacturing council, says 'leadership needed¡­ |rt AT_USER merck ceo kenneth frazier's "personal conscience" includes price gouging ame
Answer:
Rise