Contemplate the data and tweets to guess whether the closing price of $cmcsa will surge or decline at 2017-08-21. 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
2017-08-07,0.1,0.2,-0.4,0.0,0.0,0.6,0.4,0.1,-0.2,-0.7,-0.8
2017-08-08,-0.8,0.6,-1.2,0.8,0.8,-0.4,-0.3,-0.5,-0.9,-1.3,-1.5
2017-08-09,-2.7,0.1,-3.2,1.8,1.8,-1.8,-1.7,-2.1,-2.4,-2.9,-3.1
2017-08-10,-0.8,0.8,-0.9,0.2,0.2,-1.6,-1.7,-2.1,-2.5,-2.9,-3.3
2017-08-11,-0.9,0.4,-1.1,0.9,0.9,-1.7,-2.2,-2.8,-3.1,-3.5,-4.0
2017-08-14,-1.0,0.2,-1.2,1.9,1.9,-2.5,-3.7,-4.2,-4.6,-5.0,-5.5
2017-08-15,1.1,1.2,-0.6,-1.0,-1.0,-0.8,-2.5,-3.0,-3.4,-3.9,-4.4
2017-08-16,1.1,1.1,-0.5,-0.6,-0.6,0.1,-1.6,-2.1,-2.6,-3.0,-3.6
2017-08-17,2.3,2.4,-0.0,-2.4,-2.4,2.3,0.9,0.4,-0.2,-0.6,-1.1
2017-08-18,-1.0,0.6,-1.2,0.6,0.6,1.4,0.6,-0.0,-0.7,-1.1,-1.5

2017-08-07: comcast corporation $cmcsa pt raised to $48.00 at argus |'dark tower' rules summer's slowest weekend at movies  $sne $cmcsa $twx|'dark tower' rules summer's slowest weekend at movies  $sne $cmcsa $twx
2017-08-08: the content war is heating up. going to be tough for cable to survive now with #espn ott. this is the straw,.. $dis $t $cmcsa $twc|dynamic technology lab private ltd has $888,000 stake in comcast corp
2017-08-09: pnc financial services group inc. has $348.67 million position in comcast corporation $cmcsa |fox news tops ratings again; 'game of thrones' at new high  $fox $foxa $cmcsa $twx|fox news tops ratings a
2017-08-10: $cmcsa i like this one! let's see what tomorrow brings.#technicalanalysis #stocks |rt AT_USER impressive setup for  $cmcsa on  #love #paralysis |AT_USER AT_USER hoarding vaseline ( $un ) &amp; kleenex
2017-08-11: rt AT_USER best hours to to rock the market:  first 2hrs of opening and last 1hr to close.    $htz $cmcsa $sp¡­|$cmcsa.  not selling till $42 prints.  options up 350% already since alerted |why you sh
2017-08-12: comcast corporation $cmcsa shares bought by state street corp |cable tv subscriptions plunging at record rates $twc $cmcsa  #broadband|state street corp boosts position in comcast corporation $cmcsa |
2017-08-13: $cmcsa  showing an excellent breakout setup pattern. check  for a possible trade suggestion |rt AT_USER $cmcsa's nbcuniversal looks to storm $dis' animation castle  via AT_USER AT_USER #comscorem¡­|co
2017-08-14: price returns vs expected daily move $cmcsa $baba $aap $amzn $tgt $wsm $urbn $nflx $hd $dis $tjx $jcp¡­ |what kind of schmucks cover an #nfl team who left their market? AT_USER &amp; AT_USER $cmcsa #n
2017-08-15: double tops / breakouts: $abev $cmcsa $wynn $mdxg $smh $pep $cci by AT_USER|teachers retirement system of the state of kentucky boosts stake in comcast corporation $cmcsa |pacific center for financial
2017-08-16: comcast corporation $cmcsa shares bought by hm payson &amp; co. |walt disney $dis p/e multiple of 17.6x looks attractive vs peers: $twx $cbs.a $lgf.a $lyv $cmcsa¡­ |big put buyers  $skx $dvn $jd $twtr
2017-08-17: $cmcsa:us consumer suit against comcast over $1b in tv sports fees can advance judge says #comcast corp   #nasdaq|hulu live offering reaches 201 local stations with fox additions  $cmcsa $dis $fox $fo
2017-08-18: rt AT_USER $cmcsa  showing an excellent breakout setup pattern. check  for a possible trade suggestion |$cmcsa  showing an excellent breakout setup pattern. check  for a possible trade suggestion |com
2017-08-19: international dividend stocks to watch and cash in on $mcd $cmcsa |rt AT_USER $paog.0196 need medical marijuana? front page news $cmcsa $sbux $pcln  $nflx $chtr $foxa $rost $dish $mat $bbby |good tech
2017-08-20: $cmcsa ready for breakout? check it out on chartmill   #loan #contentmarketing |comcast corporation $cmcsa receives $45.69 average price target from analysts |rt AT_USER box office battle: 'hitman's b
Answer:
Rise