Utilize the data and tweets at hand to foresee if the closing price of $slb will elevate or diminish at 2015-07-21. 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
2015-07-07,-0.7,0.5,-2.4,0.9,0.9,0.3,1.7,2.8,3.9,4.6,5.1
2015-07-08,1.2,1.9,-0.4,-1.5,-1.5,1.0,2.7,3.8,5.1,5.8,6.4
2015-07-09,0.9,0.9,-0.3,0.8,0.8,0.1,1.5,2.6,3.8,4.7,5.3
2015-07-10,0.4,0.7,-0.9,0.5,0.5,-0.4,0.6,1.7,2.9,3.9,4.6
2015-07-13,-0.3,0.2,-1.0,0.4,0.4,-0.6,-0.0,1.1,2.2,3.2,3.9
2015-07-14,-1.0,1.0,-1.3,1.2,1.2,-1.5,-1.3,-0.2,0.7,1.8,2.5
2015-07-15,1.4,1.6,-0.1,-1.9,-1.9,0.6,0.4,1.4,2.4,3.5,4.2
2015-07-16,0.8,1.0,-0.3,0.3,0.3,0.4,0.0,0.8,1.7,2.8,3.6
2015-07-17,0.6,1.5,-0.6,-0.2,-0.2,0.5,0.2,0.8,1.6,2.7,3.6
2015-07-20,0.9,1.2,-0.1,-0.2,-0.2,0.6,0.5,0.8,1.7,2.6,3.5

2015-07-07: slb schlumberger ltd. investor opinions$slb $fxe $pihn $ppch #slb #share #nasdaqsltd solar3d, inc. change…|slb schlumberger ltd. news$slb $kol $fxe $kol #slb #share #sharesltd solar3d, inc. tick…|cat 
2015-07-09: noteworthy etf inflows: $xle  $slb  $kmi  $eog #etfs: symbols mentioned in this story:  xle, slb, kmi, eog  ... 
2015-07-10: jdst direxion daily junior gold miners index bear 3x shares market cap$jdst $slb $hack $xlf #jdst #invest…
2015-07-11: cyt cytec inds, inc. chart$cyt $itb $uso $slb #cyt #share #stockmarket|oil prices are headed higher, two top investors say  $xom $cvx $slb $uso|adtn adtran, inc. % change$adtn $bets $slb $uslv #adtn #
2015-07-13: rt AT_USER earnings, economic &amp; fed speak$jpm $csx $yum $bac $dal$nflx $intc $ebay $gs $c$dpz $goog $mat $slb $ge |$slb $oih $hal $bhi $nov:schlumberger kicks off oilfield services earnings season
2015-07-14: AT_USER $slb is reporting earnings for q2 2015 on 07/16/15 – 
2015-07-15: cpg.to crescent point energy corp. p/e ratio$cpg.to $bib $slb $wmt #cpg.to #tradeideas #pennystocks|rt AT_USER schlumberger : second quarter earnings preview – fall in oil prices to dent performance? 
2015-07-17: offshore drillers under heavy pressure  $slb $cop $esv $nov|schlumberger could experience more volatility  $slb
2015-07-20: rt AT_USER slb schlumberger ltd. e.p.s.$slb $dslv $slnn $feye #slb #tradeideas #stocks
Answer:
Rise