-er b-u bbb bbe bbi bbr bbs bbt bbu be- beb bee bei ber bes bet beu bev bi- bib bie bii bir bis bit biu biv brb bre bri brr brs brt bru brv bsb bse bsi bsr bss bst bsu bsv btb bte bti btr bts btt btu btv bub bue bui bur bus but buu bvb bve bvi bvr bvs bvt bvu bvv ebb ebe ebi ebr ebs ebt ebu ebv eeb eee eer ees eet eev eib eie eii eir eis eit eiu eiv erb ere eri err ers ert eru erv es- esb ese esi esr ess est esu esv etb ete eti etr ets ett etu etv eu- eub eue eui eur eus eut euv evb eve evi evr evs evt evv i-v ibb ibe ibi ibr ibs ibt ibu ibv ie- iee iei ier ies iet iev iib iie iii iir iis iit iiu ir- irb ire iri irr irs irt iru irv is- isb ise isi isr iss ist isu isv itb ite iti its itt itu itv iu- iub iue iui iur ius iut ivb ive ivi ivr ivs ivt ivu ivv rbb rbe rbi rbr rbs rbt rbu re- reb ree rei rer res ret reu rev rib rie rii rir ris rit riv rrb rri rrr rrs rrt rru rsb rse rsi rsr rss rst rsu rsv rtb rte rti rtr rts rtt rtu rtv rub rue rui rur rus rut ruu ruv rvb rve rvi rvr rvs rvt rvu rvv sbb sbe sbi sbr sbs sbt sbu sbv se- seb see sei ser ses set seu sev sib sie sii sir sis sit siu siv sr- srb sre sri srr srs srt srv ss- ssb sse ssi ssr sss sst ssu ssv stb ste sti str sts stt stu stv sub sue sui sur sus sut suu suv svb sve svi svr svs svt svu svv tbb tbe tbi tbr tbs tbt tbu tbv te- teb tee tei ter tes tet teu tev tib tie tii tir tis tit tiu tiv trb tre tri trr trs trt tru trv tsb tse tsi tsr tss tst tsu tsv ttb tte tti ttr tts ttt ttu ttv tub tue tui tur tus tut tuu tuv tvb tve tvi tvr tvs tvt tvu ubb ube ubi ubr ubs ubt ubu ubv ueb uee uei uer ues uet uib uie uii uir uis uit uiu ur- urb ure uri urr urs urt uru usb use usi usr uss ust usu usv utb ute uti utr uts utt utu utv uue uur uus uut uuu uvb uve uvs uvu uvv v-e vbi vbr vbs vbv veb vee vei ver ves vet veu vi- vib vie vii vir vis vit viu viv vrb vre vri vrr vrs vrt vru vsb vse vsi vsr vss vst vsu vsv vtb vte vti vtr vts vtt vtu vtv vue vur vus vut vuv vvb vvi vvr vvs vvt vvv

bbbb bbbs bbeb bbet bebb bebe bebi beeb beer bees beet beir beis beit bere beri berr bers bert beru bes- bese bess best bete beti bets bett betu betv beur bevs bibb bibe bibi bibs bieb bier bies biet bieu biis birb bire biri birr birs birt biru bis- bise biss bist bisu bite bits bitt bitu bive bivi breb bree brei brer bres bret brev brie bris brit brrr brrs brsb brsr brst brue brus brut bruv brvi bseb bsee bser bses bset bsse bsts bstv btie btrt btss bttb btus btvi bubb bube bubi bubs bubu buer bueu buie buir buis buit buiu bur- burb bure buri burr burs burt buru buse busi buss bust busu but- bute buti buts butt buus buve ebbr ebbs eber ebes ebis ebit ebru ebur ebus eeee eees eers eese eesi eete eets eetu eiei eier eies eire eirs eise eiss eist eitb eiti eitr erbb erbe ereb erei erer eres eret erev erie eris erit eriu erre errs erse ersi erst erts ertu erub erur erus eruv erve ervi esbs esee eser eses eset esie esis esit esri esse essi esst essu este estr ests estv esui esus etbr etee eter etes etre etsi etsu ette etti ettu etui eubi euer eur- eure eurt euse ever eves evet evie evir evre evrs evst i-be ibes ibet ibie ibis ibri ibss ibtb ibts ibus ieet ieie iere ieri iers iesi iesr iest iesu iett ietv iies iiie iiii iiis iiit iirs iisi iisr iist iisu iitr iitt irbe iree irer ires iri- irie iris irre irri irrs irse irte irti irts irus irvs isbe isbt iseb isee iser ises iset isie isis isit isri isse issi issr isss issu iste isti istr ists isus itbe itbs iter ites itet itie itis itri itrs itse itsi itsu itur iuiu iuse iuss iust ivbv iver ives ivie ivre ivrs ivue rbbb rbbr rbbs rbis rbss rbst rebb rebe rebs rebu reeb rees reet reev reii reir reis reit reiu rere reri rers rert reru rese resi ress rest rete reti retr rets rett reue reus reut reuu reve revi revs rib- ribe ribs ribu rier ries riet rieu riis rire riri rirs rise risi riss rist risu rite riti rits ritt ritu riue rius rive rivs rrrr rsbi rsee rsis rsre rsts rstu rtee rtei rtes rtss rtts rtve rtvi rubb rube rubi rubs rubu ruer rues ruet ruis ruit rure ruri rurs ruru ruse rusi russ rust rusu rute ruti ruts rutt rutu ruve ruvi ruvu rver s-ib s-ii s-iv s-vt sbbs sber sbse sbsi sbst sbus se-e se-i se-s se-t se-u sebe sebi sebs sebt seeb seer sees seet seeu seie seii seir seis seit seiu serb sere seri serr sers sert seru serv sese sesi sess sest set- sete seti sets sett seui seur seve sevi sibe sibi sibs sibu sier sies siit sire siri sirr sirs sirt siru sise sisi siss sist sisu sit- site siti sits sitt situ siue siui sius siut sive sivi sreb sres