Utilize the data and tweets at hand to foresee if the closing price of $gild will elevate or diminish at 2017-09-28. 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
2017-09-14,1.0,1.0,-0.9,-1.7,-1.0,1.6,1.3,-1.9,-4.4,-5.9,-6.8
2017-09-15,0.5,1.4,-0.1,0.1,0.1,1.0,1.1,-1.3,-3.9,-5.5,-6.5
2017-09-18,-0.5,0.6,-1.7,0.7,0.7,-0.0,0.4,-1.2,-3.9,-5.7,-6.8
2017-09-19,1.3,1.3,-0.2,-0.8,-0.8,0.4,1.2,0.3,-2.5,-4.4,-5.7
2017-09-20,-0.3,0.3,-1.0,0.4,0.4,-0.2,0.8,0.4,-2.3,-4.4,-5.7
2017-09-21,0.1,1.0,-0.5,-0.0,-0.0,-0.1,0.6,0.6,-1.7,-3.9,-5.3
2017-09-22,-1.0,0.1,-1.5,0.8,0.8,-0.6,-0.4,-0.2,-1.9,-4.1,-5.6
2017-09-25,-0.2,0.8,-0.9,0.4,0.4,-0.9,-0.8,-0.6,-1.7,-3.9,-5.5
2017-09-26,-0.1,1.2,-0.3,0.2,0.2,-0.7,-1.0,-0.6,-1.3,-3.5,-5.2
2017-09-27,0.1,0.8,-0.5,0.1,0.1,-0.5,-1.1,-0.6,-0.9,-3.1,-4.9

2017-09-14: $gild  pricing of senior unsecured notes in an aggregate principal amount of $3  billion|rt AT_USER malaysia will issue a license for generic versions of gilead's sovaldi hepatitis c pill..  #pharma $
2017-09-15: AT_USER AT_USER $gild cr (complete remission) in the terminal cases they (fda) are indicating their car t for is about 40%. 5yrs+some|don't miss our next free option trade.  sign up for our daily free
2017-09-16: rt AT_USER going short car-t names over weekend could be a disaster.  another car-t buyout by $gild or $celg $nvs will cause stocks¡­|don't miss our next free option trade.  sign up for our daily free
2017-09-17: don't miss our next free option trade.  sign up for our daily free trades at  $nvda $tsla $gs $gild $biib $googl $fb|argentiere capital ag lowered its gilead sciences $put $gild holding by $412,500 as
2017-09-18: rt AT_USER traderlion current positions summary: $gild $athm $baba $jd $evbg $tdoc $uctt $sq $tsla $pcty $nvda $glyc $nvcr |like it or not, but $gild's  techical report is impressive |don't miss our n
2017-09-19: rt AT_USER artificially intelligent fund AT_USER acquires large position in kite pharma $kite $gild $ibb |artificially intelligent fund AT_USER acquires large position in kite pharma $kite $gild $ibb 
2017-09-20: $gild gild's hiv franchise are taking ms from gsk and when bic arrives in feb 2018, gild will continue to have the best of the best in hiv|$gild kite's car t therapy should be in hospitals by december
2017-09-21: rt AT_USER similarly, $onxx acq by $amgn &amp; $kite by $gild etc returned enormous capital to group beyond what's consumed by early¡­|rt AT_USER similarly, $onxx acq by $amgn &amp; $kite by $gild etc
2017-09-22: price moves vs expected moves $exas $agn $gild $teva $celg $bmy $pfe $unh $vrx $axon $icpt $vsar¡­ |rt AT_USER fda warns doctors after 19 deaths on intercept liver drug $icpt #nash #pbc $gnft $gild |$
2017-09-23: rt AT_USER bidders for #immuron 's #nafld #nash portfolio likely to be $azn $pfe $gld $sny $gild $imroy imc in #australia |don't miss our next free option trade.  sign up for our daily free trades at 
2017-09-24: $nwbo -  $gild paying $12 bil for $kite. in 2011 gateway industries jumped over 20,000% in one day. #cnbc #wsj| $aapl $chct $ed $fb $gild $gld $hrl $lmt $low $ltc $mo $msft $nee $nvs $o $ohi $pep $qco
2017-09-25: rt AT_USER watch for buyout rumors in $incy coming soon.  after shedding 30%, the big boys will be salivating to buy this company¡­|cellular kinetics of ctl019 in relapsed/refractory b-cell all and cl
2017-09-26: rt AT_USER $acrx acelrx pharmaceuticals inc (nasdaq:acrx) could still have a lot of juice left ¡­  $ibb $gil¡­|rt AT_USER $acrx acelrx pharmaceuticals inc (nasdaq:acrx) could still have a lot of juice
2017-09-27: spark recruits gene therapy expert mingozzi as new cso; china oks gilead's sovaldi for hep c¡­ |rt AT_USER $nwbo -  $gild paying $12 bil for $kite. in 2011 gateway industries jumped over 20,000% in on
Answer:
Fall