Contemplate the data and tweets to guess whether the closing price of $amgn will surge or decline at 2017-04-13. 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
2017-03-30,-0.2,0.3,-0.7,0.8,0.8,0.1,1.0,4.1,5.2,5.7,5.6
2017-03-31,0.2,0.9,-0.1,-0.2,-0.2,0.1,1.0,3.6,5.0,5.6,5.7
2017-04-03,0.5,0.7,-0.2,-0.1,-0.1,0.1,0.7,3.0,4.6,5.5,5.6
2017-04-04,-0.4,0.1,-0.8,0.3,0.3,-0.2,0.3,2.1,3.9,4.9,5.1
2017-04-05,0.6,1.6,-0.3,-1.3,-1.3,1.0,1.3,2.6,4.8,5.8,6.3
2017-04-06,-0.0,0.7,-0.4,0.0,0.0,0.7,1.1,1.8,4.3,5.4,6.0
2017-04-07,-0.3,0.5,-0.7,0.7,0.7,-0.1,0.2,0.9,3.0,4.3,5.1
2017-04-10,0.7,0.9,-0.1,-0.4,-0.4,0.1,0.4,1.0,2.8,4.3,5.2
2017-04-11,-0.1,0.2,-1.0,0.2,0.2,-0.2,0.1,0.6,2.1,3.7,4.7
2017-04-12,0.6,0.6,-0.5,-0.0,-0.0,-0.1,0.2,0.5,1.5,3.4,4.4

2017-03-30: $amgn max pain = 167.50. maturity = 03/31/2017. previous close = 163.06.   |rt AT_USER $amgn i'm going to start watching amgn through here. |7 dividends that have doubled quickly  $amgn $bac $qcom $lv
2017-03-31: AT_USER AT_USER $arwr did the same 3q16 raising $45m before announcing $amgn partnership 1 month later. |rt AT_USER $amgn's repatha is starting to grab more market share vs $sny/$regn's praluent, but 
2017-04-01: rt AT_USER amgen moves r&amp;d jobs from hq to cambridge and san francisco as rolling reorganization continues: |$amgn max pain is 170.00 for maturity 04/07/2017. prev close = 164.07.   |#amgen ucb : 
2017-04-02: rt AT_USER $aapl $msft $amzn $fb $goog $googl $cmcsa $intc $csco $amgn |$aapl $msft $amzn $fb $goog $googl $cmcsa $intc $csco $amgn |$amgn max pain = 170.00. maturity = 04/07/2017. previous close = 16
2017-04-03: must read: up today on news. short squeeze coming:  $amgn $oil $ea $mt $skx $cpst $hig $nwbo $orly $stp|$amgn broke below first support zone.  open small long here or set limit buy at 158 (next suppor
2017-04-04: rt AT_USER on the #biotech beat: $amgn will move 100 workers to san francisco, cambridge as part of restructuring |private equity masquerade $amzn $goog $alk $len $amgn |rt AT_USER $spx #52weekhighs d
2017-04-05: rt AT_USER pepsi's ceo just had to go there! $vrx $agn $myl $mrk $jnj $bmy $jazz $blue $amgn $prgo $azn $unh $exel $jpm $bac $hlf $wfc¡­|gilead sciences: the company did exactly as promised  $amgn $mr
2017-04-06: follow #nasdaq 100 traders &amp; track their tweets under one watchlist $amgn $qcom  |brief-#amgen says ceo robert bradway's total compensation for 2016 was $16.9 mln vs $16.1 m... read more:  $amgn|m
2017-04-07: amgn +1.13 total advance today 04/07/17. amgen $amgn 163.38 stock hit a high of 164.24 and 162.25 low with vol |amgen, inc. $amgn lowered to ¡°buy¡± at vetr inc. |rt AT_USER on the #biotech beat: $amg
2017-04-08: $amgn:us amgen (amgn) given daily news impact score of 0.24 #amgen inc   #sp500|don't forget!!!   $vrx $agn $myl $jazz $amph $prgo $teva $tsla $mnk $ko $pep $twtr $flxn $tst $brk $iep $amgn $tsla|as s
2017-04-09: AT_USER AT_USER ... and since you ran out of characters, i'll help finish the list. $teva  (tev 48125), $amgn (amg-334)|rt AT_USER my k.i.s.s. dividend portfolio: 1st quarter 2017 update $aapl #apple 
2017-04-10: s&amp;p100 #stocks performance $gd $amgn $msft $nee $rtn $bmy $celg $cat $fdx $jnj $pcln $mdt $dis $agn $intc  more@ |$amgn high open interest range is 162.50 to 165.00 for option expiration 04/13/201
2017-04-11: $amgn caught between 2 gaps. grinding down 8d resistance, but hammer today.  AT_USER |AT_USER $aapl and $amgn|can pluristem therapeutics corner the acute radiation syndrome market?  $amgn $sny $psti|c
2017-04-12: AT_USER hope they would given the difficulties that $amgn and $regn have faced.|wells fargo w/a seller! $wfc $vrx $teva $myl $ko $brk $hlf $iep $amgn $jnj $ipxl $endp $amzn $hun $mrk $bac $hd¡­ |conve
Answer:
Fall