-er bbb bbe bbg bbi bbo bbr bbs bbt be- beb bee beg bei beo ber bes bet bev bgb bge bgg bgi bgo bgr bgs bgt bgv bi- bib bie big bii bio bir bis bit biv bob boe bog boi boo bor bos bot bov brb bre brg bri bro brr brs brt brv bsb bse bsg bsi bso bsr bss bst bsv btb bte btg bti bto btr bts btt btv bvb bve bvg bvi bvo bvr bvs bvt bvv ebb ebe ebg ebi ebo ebr ebs ebt ebv eeb eee eeg eeo eer ees eet eev egb ege egg egi ego egr egs egt eib eie eig eii eio eir eis eit eiv eo- eob eoe eog eoi eoo eor eos eot erb ere erg eri ero err ers ert erv es- esb ese esg esi eso esr ess est esv etb ete etg eti eto etr ets ett etv evb eve evg evi evo evr evs evt evv gbe gbg gbi gbo gbr gbs gbt gbv ge- geb gee geg gei geo ger ges get gev ggb ggg ggi ggo ggr ggs ggt ggv gib gie gig gii gio gir gis git giv gob goe gog goi goo gor gos got gov grb gre grg gri gro grr grs grt grv gsb gse gsg gsi gso gsr gss gst gsv gtb gte gtg gti gto gtr gts gtt gtv gvb gve gvg gvi gvo gvr gvs gvt i-v ibb ibe ibg ibi ibo ibr ibs ibt ibv ie- iee ieg iei ier ies iet iev igb ige igg igi igo igr igs igt iib iie iii iio iir iis iit io- iob ioe iog ioi ioo ior ios iot iov ir- irb ire irg iri iro irr irs irt irv is- isb ise isg isi iso isr iss ist isv itb ite itg iti ito its itt itv ivb ive ivg ivi ivo ivr ivs ivt ivv o-i ob- obb obe obg obi obo obr obs obt obv oeb oee oeg oei oeo oer oes oet oge ogg ogi ogo ogs ogt oib oie oii oio oir ois oit oiv oo- oob oog ooi ooo oor oos oot oov or- orb ore org ori oro orr ors ort orv os- osb ose osg osi oso osr oss ost osv ot- otb ote otg oti oto otr ots ott otv ov- ovb ove ovi ovo ovs ovv rbb rbe rbg rbi rbo rbr rbs rbt re- reb ree reg rei reo rer res ret rev rgb rge rgg rgi rgo rgr rgs rgt rgv rib rie rig rii rio rir ris rit riv rob roe rog roi roo ror ros rot rov rrb rrg rri rrr rrs rrt rsb rse rsg rsi rso rsr rss rst rsv rtb rte rtg rti rto rtr rts rtt rtv rvb rve rvg rvi rvo rvr rvs rvt rvv sbb sbe sbg sbi sbo sbr sbs sbt sbv se- seb see seg sei seo ser ses set sev sgb sge sgg sgi sgo sgr sgs sgt sgv sib sie sig sii sio sir sis sit siv sob soe sog soi soo sor sos sot sov sr- srb sre srg sri sro srr srs srt srv ss- ssb sse ssg ssi sso ssr sss sst ssv stb ste stg sti sto str sts stt stv svb sve svg svi svo svr svs svt svv tbb tbe tbg tbi tbo tbr tbs tbt tbv te- teb tee teg tei teo ter tes tet tev tgb tge tgg tgi tgo tgr tgs tgt tgv tib tie tig tii tio tir tis tit tiv to- tob toe tog toi too tor tos tot tov trb tre trg tri tro trr trs trt trv tsb tse tsg tsi tso tsr tss tst tsv ttb tte ttg tti tto ttr tts ttt ttv tvb tve tvg tvi tvo tvr tvs tvt v-e vbg vbi vbo vbr vbs vbv veb vee veg vei veo ver ves vet vgg vgo vgr vgs vgt vi- vib vie vig vii vio vir vis vit viv vob voe vog voi voo vor vos vot vov vrb vre vrg vri vrr vrs vrt vsb vse vsg vsi vso vsr vss vst vsv vtb vte vtg vti vto vtr vts vtt vtv vvb vvg vvi vvo vvr vvs vvt vvv

-ose bbbb bbbs bbeb bbet bbrg bebb bebe bebi bebo beeb beeg beer bees beet begg begi bego begs beir beis beit beo- beor beos beot bere berg beri bero berr bers bert bes- bese beso bess best bete beti beto bets bett betv bevo bevs bggs bgst bibb bibe bibi bibo bibs bieb bier bies biet bigb bige bigg bigo bigs bigt biis bio- biog bioi bios biot birb bire birg biri biro birr birs birt bis- bise biso biss bist bite bito bits bitt bive bivi bobb bobe bobi bobo bobs boee boeo boer boes boet boge bogg bogi bogo bogs bogt boi- boie boii bois boit boob booe boog boor boos boot bor- bore borg bori boro borr bors bort bose bosi boso boss bost botb bote boti boto bots bott bove bovi bovo breb bree breg brei breo brer bres bret brev brie brig brio bris brit brob broe brog broo bror bros brot brrr brrs brsb brsr brst brvi bseb bsee bseg bser bses bset bsgs bsos bsse bsts bstv btie btob btor btrt btss bttb btvi ebbo ebbr ebbs eber ebes ebis ebit eboe eboo ebor ebos ebro eeee eees eegs eerg eero eers eese eesi eete eets egbe egee eger eggb egge eggi eggo eggs egir egis ego- egoi egor egos egot egov egre egri egss egte egts eiei eier eies eige eigg eire eirs eise eiso eiss eist eitb eiti eito eitr eoes eoir eois eore eori eost eoto eots erbb erbe ereb erei erer eres eret erev erg- ergg ergi ergo ergs erie erio eris erit erob eroe eroi eroo eros erre erro errs erse ersi erso erst erts erve ervi esbo esbs esee