Contemplate the data and tweets to guess whether the closing price of $mrk will surge or decline at 2017-06-28. 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
2017-06-14,-0.6,0.4,-0.6,0.2,0.2,0.1,0.9,1.2,0.9,0.7,0.6
2017-06-15,0.2,0.4,-0.5,-0.3,-0.3,0.5,0.9,1.3,1.2,1.0,0.8
2017-06-16,0.5,1.2,-0.4,-0.3,-0.3,0.6,1.0,1.5,1.6,1.3,1.2
2017-06-19,-0.9,0.2,-1.0,1.1,1.1,-0.6,-0.3,0.3,0.5,0.2,0.1
2017-06-20,-1.3,0.7,-1.5,1.3,1.3,-1.5,-1.6,-1.0,-0.8,-1.0,-1.2
2017-06-21,-1.4,0.2,-1.4,1.4,1.4,-2.3,-2.7,-2.3,-2.1,-2.3,-2.5
2017-06-22,-0.8,0.5,-1.0,0.9,0.9,-2.3,-3.0,-3.0,-2.8,-2.9,-3.2
2017-06-23,-0.2,0.3,-0.5,0.2,0.2,-1.5,-2.9,-3.1,-2.9,-3.0,-3.2
2017-06-26,0.3,0.7,-0.1,-0.4,-0.4,-0.5,-2.2,-2.6,-2.4,-2.5,-2.8
2017-06-27,1.1,1.1,0.0,-0.6,-0.6,0.4,-1.3,-1.9,-1.8,-1.8,-2.1

2017-06-14: merck &amp; co. (mrk) presents at asco 2017 (oncology event) - slideshow  $mrk |i hope to get a job soon cause i sure do miss playing golf :-) try to beat me! $vrx $agn $myl $mrk $twtr $aapl $brk¡­ |r
2017-06-15: rt AT_USER this gif gets me! $amzn $vrx $agn $myl $mrk $twtr $ko $pep $aapl $brk $iep $ibm $crm $crm $shak $cake $ba $aa $dal $prgo $j¡­|#merck &amp; co. becomes member of the worldwide innovative net
2017-06-16: $myo regardless they going to get bought out hearing they have a very impressive board. major nyse drug companies. $mrk $pfe $bmy|rt AT_USER $djia wkly best performing $ge $trv $ba $mmm $hd $jnj $cvx 
2017-06-17: rt AT_USER upcoming pdufa/fda advisory committee meeting/351(k) dates $mrk big pdufa next week $ocul $alks $ibb $srpt $pbyi $ptla |abbvie $abbv ltm ebitda multiple trading below majority of peers: $bm
2017-06-18: rt AT_USER dogs of the dow underperformance gap widening $ba $cat $cvx $ibm $ko $mrk $pfe $vz $xom $csco |dogs of the dow underperformance gap widening $ba $cat $cvx $ibm $ko $mrk $pfe $vz $xom $csco 
2017-06-19: rt AT_USER targeting the pd-1/pd-l1 immune checkpoint inegfr-mutated oralk-translocated nsclc $azn $mrk $bmy $rog $nvs |rt AT_USER cs #parp market 8-12 billion $tsro $clvs $azn -almost 3b split - bigg
2017-06-20: #merck &amp; co. becomes member of the worldwide innovative network in personalized cancer medic... read more:  $mrk|data on medicinal chemistry detailed by researchers at #merck &amp; company (improv
2017-06-21: biotechs blaze as trump draft order on drug pri... $ibb $pfe $mrk $bmy $nvs $lly $jnj $agn $amgn $biib $vrtx |biotechs blaze as trump draft order on drug pri... $ibb $pfe $mrk $bmy $nvs $lly $jnj $agn
2017-06-22: rt AT_USER u.s. panel considers giving a nod to new shingles vaccine from $gsk, and a competitor $mrk objects ¡ª&gt; |merck &amp; company, inc. $mrk upgraded at bidaskclub |my short entry just wasn't 
2017-06-23: rt AT_USER 15 great dividend stocks to own  $aapl $t $ba $pfe $mrk $tsn $txn $expd $hrl $vz $jnj $cmcsa $ms¡­|15 great dividend stocks to own  $aapl $t $ba $pfe $mrk $tsn $txn $expd $hrl $vz $jnj $cmc
2017-06-24: gilead: how sweet it is  $mrk $gild 143% #investing profits 3 1/2 years &amp; free #newsletter - |quick trade on friday for fast profit, looking to keep shorting on mon $ibb $xbi $celg $labu $labd $bm
2017-06-25: rt AT_USER $vdrm $frzt $chro $icnb $kerx $pfe $mrk $adxs $bmy $bac $c $gs $jpm $amd $dcth $csco $qqq $eled $nvax $mu $jd $ttd $an¡­|rt AT_USER the fda has never approved a drug like this in its 111-ye
2017-06-26: rt AT_USER $vdrm #fdanews #fda #news $amgn $alny $jnj $srpt $ptct $nvax $adxs $pbyi $mrk $clvs $mnkd $frzt $icnb $chro $eled |rt AT_USER $vdrm $frzt $chro $icnb $kerx $pfe $mrk $adxs $bmy $bac $c $gs 
2017-06-27: AT_USER thanks for follow! see vista partners #worldnews #investing #healthcare  $hiiq¡­ |#merck heart drug surprises with positive result; questions linger. read more:  $mrk|rt AT_USER because i feel
Answer:
Fall