Analyze the information and social media posts to determine if the closing price of $gild will ascend or descend at 2017-05-17. 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
2017-05-03,-0.1,0.6,-1.4,-2.0,-2.0,1.5,0.4,-0.1,-0.4,-0.3,-0.2
2017-05-04,-1.0,0.7,-1.1,1.3,1.3,0.0,-0.6,-1.2,-1.6,-1.5,-1.4
2017-05-05,0.4,1.0,-0.4,-0.4,-0.4,0.2,0.1,-0.7,-1.1,-1.1,-1.0
2017-05-08,0.8,0.9,-0.2,-0.9,-0.9,0.8,1.1,0.2,-0.1,-0.3,-0.1
2017-05-09,-0.6,0.2,-0.8,0.6,0.6,-0.0,0.6,-0.2,-0.6,-0.8,-0.7
2017-05-10,1.2,1.3,-0.3,-1.0,-1.0,0.9,1.4,0.9,0.5,0.2,0.3
2017-05-11,0.1,0.2,-1.0,-0.3,-0.3,0.8,1.5,1.2,0.8,0.5,0.6
2017-05-12,1.2,1.3,-0.5,-1.0,-1.0,1.3,2.1,2.2,1.8,1.5,1.5
2017-05-15,0.2,0.3,-0.3,-0.2,-0.2,1.1,1.9,2.4,1.9,1.6,1.6
2017-05-16,0.0,0.5,-0.4,-0.3,-0.3,0.8,1.8,2.6,2.2,1.9,1.8

2017-05-03: gilead sciences's buy rating reiterated at gabelli. $85.00 pt.  $gild #gild|gilead sciences's overweight rating reiterated at barclays plc. $85.00 pt.  $gild #gild|gilead sciences's buy rating reitera
2017-05-04: gilead sciences, inc. $gild given ¡°hold¡± rating at maxim group |gilead sciences, inc. $gild expected to announce earnings of $2.13 per share |gilead sciences, inc. $gild expected to announce earning
2017-05-05: rt AT_USER european union is urged to probe gilead and three other drug makers for #antitrust practices..  #phar¡­|rt AT_USER european union is urged to probe gilead and three other drug makers for #a
2017-05-06: gilead sciences, inc. $gild short interest update |gilead sciences, inc. $gild short interest update |$gild $mrk $bmy $abbv $rgls |building a bulletproof portfolio around a gilead position  $algn $mom
2017-05-07: cowen and company reiterates buy rating for gilead sciences, inc. $gild |perigon wealth management llc cuts position in gilead sciences, inc. $gild |rt AT_USER from our weekly chart book: downtrends d
2017-05-08: gilead sciences¡¯ $gild outperform rating reaffirmed at credit suisse group ag |gilead sciences, inc. $gild downgraded by zacks investment research to ¡°hold¡± |gilead sciences, inc. $gild downgraded 
2017-05-09: rt AT_USER commented on stocktwits: $gild, a $68 "biocrap" throwing off $7-$9 eps next year? wow. #researchtime |rt AT_USER AT_USER $nk i tried to help AT_USER  nk cells need dcvax $nwbo buyout ?$bmy 
2017-05-10: rt AT_USER take the emotion out of your position sizing - get my free spreadsheet $study #stocks $aapl $googl $nflx $gild |$gild:us gilead: hcv revenues for the coming years #gilead sciences inc   #na
2017-05-11: john francis cogan sells 9,943 shares of gilead sciences, inc. $gild stock |john francis cogan sells 9,943 shares of gilead sciences, inc. $gild stock |john francis cogan sells 9,943 shares of gilead 
2017-05-12: $gild - statement of changes in beneficial ownership (4) |$googl #seo #searchengineoptimization #bots #like #retweeting from  $gild $snap $f #fridayfeeling|$googl #seo #searchengineoptimization #bots 
2017-05-13: rt AT_USER drops in nasdaq shorts: $bbry $cdns $msft $cy $sfm $spls $stx $swks $himx $mu $pten $fnsr $ppc $scss $znga $gild $wfm $wdc¡­|$vdrm $tsla $kerx $pfe $mrk $adxs $bmy $bac $gs $jpm $amd $dcth 
2017-05-14: the obesity epidemic: are roche and bristol-myers sitting on a mighty prospect?  $bmy $abt $agn $etrm $arna $gild|on the #biotech beat with AT_USER $gild's last chronic #hiv drug ¡ª and what it plans 
2017-05-15: rt AT_USER $gild struggling in downtrend |$gild struggling in downtrend | jbp student made more than $50k read his review to find out how! $amd $xom $gild $feye|gilead sciences: for the enterprising i
2017-05-16: rt AT_USER the pedal needs floored.  incremental changes the past 30 years #gbm. #asco17 $kite $juno $blue $celg $gild combo with #opd¡­|gilead sciences, inc. $gild given outperform rating at credit s
Answer:
Fall