Analyze the information and social media posts to determine if the closing price of $amgn will ascend or descend at 2020-04-21. 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
2020-04-06,0.2,0.5,-2.2,3.0,3.0,-3.0,-4.2,-5.1,-5.7,-4.9,-4.3
2020-04-07,2.2,3.1,-0.7,-1.3,-1.3,-1.1,-2.6,-3.8,-4.4,-3.5,-3.1
2020-04-08,-4.7,0.3,-5.4,5.0,5.0,-3.8,-6.0,-7.9,-8.4,-8.0,-7.6
2020-04-09,-0.4,0.5,-1.2,-0.4,-0.4,-2.6,-4.7,-6.9,-7.2,-7.5,-7.0
2020-04-13,-0.6,0.4,-1.4,0.0,0.0,-1.4,-3.8,-6.0,-6.9,-7.4,-6.7
2020-04-14,-2.6,0.7,-2.9,3.9,3.9,-3.8,-6.6,-8.3,-9.5,-10.4,-10.0
2020-04-15,1.4,1.7,-1.1,-2.2,-2.2,-0.4,-3.7,-5.7,-7.2,-8.1,-7.7
2020-04-16,-2.6,0.5,-3.3,4.1,4.1,-3.3,-6.0,-8.3,-10.3,-11.1,-11.1
2020-04-17,0.8,0.9,-2.4,1.8,1.8,-3.6,-6.5,-8.9,-11.0,-11.8,-12.3
2020-04-20,-1.0,1.3,-1.8,0.7,0.7,-2.7,-5.9,-8.4,-10.6,-11.8,-12.6

2020-04-07: $amgn - additional proxy soliciting materials (definitive) (defa14a) 
2020-04-08: $nspx 014 the monster awakening watching?! cancer #biotech use ur eyes?$clls $srne $kool $ziop $mdt $abt $ew $bio $tndm $podd $osur $myl $egrx $anip $coll $lci $prgo $endp $once $sgmo $amgn $biib $gil
2020-04-14: wow $aapl calls and $amgn calls paid huge. got $t calls at close|#bullseyetrades thanks for $amgn jeff! just sold my small positions and made 22.5% not bad for a 24 hour period. that was my first opti
2020-04-15: guggenheim on the fence with amgen in premarket analyst action $amgn $idxg $xent $ogi |morgan stanley lowers amgen $amgn price target to $267.00 |$mrk merck announced the us launch of its herceptin bi
2020-04-16: $amgn algo. call 
2020-04-18: $fujiyfujifilm begins us phase ii clinical trial of avigan for #covid19 patients and increases production$gild $regn $amgn $mrna $jnj $spy $qqq $vix $vxx #yen #japan #coronavirus
2020-04-20: 1,907 shares in amgen acquired by xtx markets $amgn 
Answer:
Fall