Analyze the information and social media posts to determine if the closing price of $mrk will ascend or descend at 2017-02-15. Please respond with either Rise or Fall.
Context: date,open,high,low,close,adj-close,inc-5,inc-10,inc-15,inc-20,inc-25,inc-30
2017-02-01,-0.1,0.3,-0.9,0.2,0.2,-0.7,-0.9,-0.8,-1.3,-1.9,-2.1
2017-02-02,-2.4,0.0,-2.6,3.3,3.3,-2.9,-3.5,-3.7,-4.2,-4.8,-5.2
2017-02-03,-0.7,0.1,-1.6,0.2,0.2,-2.3,-3.4,-3.7,-4.0,-4.7,-5.1
2017-02-06,-1.6,0.0,-1.6,1.0,1.0,-2.2,-3.9,-4.4,-4.6,-5.3,-5.8
2017-02-07,0.9,1.1,-0.2,-1.1,-1.1,-0.4,-2.3,-3.0,-3.3,-3.8,-4.5
2017-02-08,-0.7,0.2,-0.8,0.2,0.2,0.1,-2.0,-2.8,-3.1,-3.7,-4.4
2017-02-09,-0.1,0.7,-0.1,0.1,0.1,0.1,-1.6,-2.5,-3.0,-3.6,-4.3
2017-02-10,0.3,0.7,-0.3,-0.4,-0.4,0.4,-0.9,-2.0,-2.5,-3.0,-3.6
2017-02-13,-0.8,0.1,-0.8,1.0,1.0,-0.6,-1.3,-2.6,-3.2,-3.6,-4.3
2017-02-14,-1.6,0.1,-1.9,1.4,1.4,-1.5,-2.1,-3.5,-4.2,-4.7,-5.2

2017-02-01: rt AT_USER $bmy just said it assumes $mrk will be successful in getting keytruda + chemo combo approval on keynote-021|rt AT_USER earnings preview: what might be driving $fb revenue? and what¡¯s the l
2017-02-02: #merck profit soars on new drugs, expects better 2017. read more:  $mrk|largest gainers today on my watch list were: $hska $nvda $sam $dpz $mrk - |merck campaign shows impact of #shingles. $mrk #hcmkt
2017-02-03: rt AT_USER  teaches #howtoperfect your #socialmedia #presence with #datascience $mrk $cmcsa $txn $dis $aig #b¡­|rt AT_USER  teaches #howtoperfect your #socialmedia #presence with #datascience $mrk $cm
2017-02-06: rt AT_USER 02/06/17 - view today's market forecast by AT_USER here:  discussed: $spx $xlv $mrk $iwm¡­|rt AT_USER 02/06/17 - view today's market forecast by AT_USER here:  discussed: $spx $xlv $mrk $iw
2017-02-07: rt AT_USER upcoming pdufa/fda advisory committee meeting/351(k) dates (1/2) $tsro $nbix $celg $shpg $ibb $clvs $mrk $rdus $bmrn $hznp $¡­|rt AT_USER mike liss of AT_USER century ($twvlx) talked about 
2017-02-08: private management group inc. cuts stake in merck &amp; company, inc. $mrk |united services automobile association reduces position in merck &amp; company, inc. $mrk |double tops / breakouts: $kgc $ib
2017-02-09: merck &amp; company, inc. to post fy2017 earnings of $3.84 per share, suntrust banks forecasts $mrk |patricia f. russo sells 5,000 shares of merck &amp; company, inc. $mrk stock |patricia f. russo sel
2017-02-10: here's why m&amp;a has tesaro's stock soaring 40% in 2017 $celg $azn $pfe $mrk $jnj $abbv $opk $clvs |ttg themes of the day (below) &amp; option summary: $iwm $mt $ebay $xom $mrk $arnc $jpm $c $m $cl 
2017-02-11: rt AT_USER AT_USER AT_USER AT_USER topline data #asco possible buyout of $nwbo by $bmy $mrk $azn $gild $celg ht¡­|rt AT_USER AT_USER AT_USER AT_USER topline data #asco possible buyout of $nwbo by $bmy
2017-02-12: rt AT_USER pharma m&amp;a in 2017: the most likely deal hunters  $amgn $gild $mrk $pfe|rt AT_USER pharma stocks getting clobbered.. great buying opportunity for the long term! $bmy $agn $abbv $pfe $mr
2017-02-13: looks like $mrk ceo ken frazier will be defending another pedophile. sickening.  |AT_USER look into #propecia as the cause of AT_USER 's failing mental health. #trumppropecp $mrk $djia|rt AT_USER all 
2017-02-14: rt AT_USER booked $mrk calls. opened 2/2. pure profit since financed using sold puts. but calls alone would be +50% on risk|rt AT_USER $mrk says phase 3 doravirine study meets primary efficacy endpoin
Answer:
Analyze the information and social media posts to determine if the closing price of $mrk will ascend or descend at 2017-02-15. Please respond with either Rise or Fall.
Context: date,open,high,low,close,adj-close,inc-5,inc-10,inc-15,inc-20,inc-25,inc-30
2017-02-01,-0.1,0.3,-0.9,0.2,0.2,-0.7,-0.9,-0.8,-1.3,-1.9,-2.1
2017-02-02,-2.4,0.0,-2.6,3.3,3.3,-2.9,-3.5,-3.7,-4.2,-4.8,-5.2
2017-02-03,-0.7,0.1,-1.6,0.2,0.2,-2.3,-3.4,-3.7,-4.0,-4.7,-5.1
2017-02-06,-1.6,0.0,-1.6,1.0,1.0,-2.2,-3.9,-4.4,-4.6,-5.3,-5.8
2017-02-07,0.9,1.1,-0.2,-1.1,-1.1,-0.4,-2.3,-3.0,-3.3,-3.8,-4.5
2017-02-08,-0.7,0.2,-0.8,0.2,0.2,0.1,-2.0,-2.8,-3.1,-3.7,-4.4
2017-02-09,-0.1,0.7,-0.1,0.1,0.1,0.1,-1.6,-2.5,-3.0,-3.6,-4.3
2017-02-10,0.3,0.7,-0.3,-0.4,-0.4,0.4,-0.9,-2.0,-2.5,-3.0,-3.6
2017-02-13,-0.8,0.1,-0.8,1.0,1.0,-0.6,-1.3,-2.6,-3.2,-3.6,-4.3
2017-02-14,-1.6,0.1,-1.9,1.4,1.4,-1.5,-2.1,-3.5,-4.2,-4.7,-5.2

2017-02-01: rt AT_USER $bmy just said it assumes $mrk will be successful in getting keytruda + chemo combo approval on keynote-021|rt AT_USER earnings preview: what might be driving $fb revenue? and what¡¯s the l
2017-02-02: #merck profit soars on new drugs, expects better 2017. read more:  $mrk|largest gainers today on my watch list were: $hska $nvda $sam $dpz $mrk - |merck campaign shows impact of #shingles. $mrk #hcmkt
2017-02-03: rt AT_USER  teaches #howtoperfect your #socialmedia #presence with #datascience $mrk $cmcsa $txn $dis $aig #b¡­|rt AT_USER  teaches #howtoperfect your #socialmedia #presence with #datascience $mrk $cm
2017-02-06: rt AT_USER 02/06/17 - view today's market forecast by AT_USER here:  discussed: $spx $xlv $mrk $iwm¡­|rt AT_USER 02/06/17 - view today's market forecast by AT_USER here:  discussed: $spx $xlv $mrk $iw
2017-02-07: rt AT_USER upcoming pdufa/fda advisory committee meeting/351(k) dates (1/2) $tsro $nbix $celg $shpg $ibb $clvs $mrk $rdus $bmrn $hznp $¡­|rt AT_USER mike liss of AT_USER century ($twvlx) talked about 
2017-02-08: private management group inc. cuts stake in merck &amp; company, inc. $mrk |united services automobile association reduces position in merck &amp; company, inc. $mrk |double tops / breakouts: $kgc $ib
2017-02-09: merck &amp; company, inc. to post fy2017 earnings of $3.84 per share, suntrust banks forecasts $mrk |patricia f. russo sells 5,000 shares of merck &amp; company, inc. $mrk stock |patricia f. russo sel
2017-02-10: here's why m&amp;a has tesaro's stock soaring 40% in 2017 $celg $azn $pfe $mrk $jnj $abbv $opk $clvs |ttg themes of the day (below) &amp; option summary: $iwm $mt $ebay $xom $mrk $arnc $jpm $c $m $cl 
2017-02-11: rt AT_USER AT_USER AT_USER AT_USER topline data #asco possible buyout of $nwbo by $bmy $mrk $azn $gild $celg ht¡­|rt AT_USER AT_USER AT_USER AT_USER topline data #asco possible buyout of $nwbo by $bmy
2017-02-12: rt AT_USER pharma m&amp;a in 2017: the most likely deal hunters  $amgn $gild $mrk $pfe|rt AT_USER pharma stocks getting clobbered.. great buying opportunity for the long term! $bmy $agn $abbv $pfe $mr
2017-02-13: looks like $mrk ceo ken frazier will be defending another pedophile. sickening.  |AT_USER look into #propecia as the cause of AT_USER 's failing mental health. #trumppropecp $mrk $djia|rt AT_USER all 
2017-02-14: rt AT_USER booked $mrk calls. opened 2/2. pure profit since financed using sold puts. but calls alone would be +50% on risk|rt AT_USER $mrk says phase 3 doravirine study meets primary efficacy endpoin
Answer:+Fall