-er bbb bbe bbf bbg bbi bbo bbr bbs bbt be- beb bee bef beg bei beo ber bes bet bfb bfe bff bfg bfi bfo bfr bfs bft bgb bge bgf bgg bgi bgo bgr bgs bgt bi- bib bie bif big bii bio bir bis bit bob boe bof bog boi boo bor bos bot brb bre brf brg bri bro brr brs brt bsb bse bsf bsg bsi bso bsr bss bst btb bte btf btg bti bto btr bts btt ebb ebe ebf ebg ebi ebo ebr ebs ebt eeb eee eef eeg eeo eer ees eet ef- efb efe eff efg efi efo efr efs eft egb ege egf egg egi ego egr egs egt eib eie eif eig eii eio eir eis eit eo- eob eoe eof eog eoi eoo eor eos eot erb ere erf erg eri ero err ers ert es- esb ese esf esg esi eso esr ess est etb ete etf etg eti eto etr ets ett fbb fbe fbf fbg fbi fbo fbr fbs fbt feb fee fef feg fei feo fer fes fet ffe fff ffg ffi ffo ffr ffs fft fgb fge fgf fgg fgi fgr fgs fgt fib fie fif fig fii fir fis fit fob foe fof fog foi foo for fos fot frb fre frf frg fri fro frr frs frt fsb fse fsf fsg fsi fso fsr fss fst ftb fte ftf ftg fti fto ftr fts ftt gbe gbf gbg gbi gbo gbr gbs gbt ge- geb gee gef geg gei geo ger ges get gfb gfe gff gfi gfo gfr gfs gft ggb ggg ggi ggo ggr ggs ggt gib gie gif gig gii gio gir gis git gob goe gof gog goi goo gor gos got grb gre grf grg gri gro grr grs grt gsb gse gsf gsg gsi gso gsr gss gst gtb gte gtf gtg gti gto gtr gts gtt i-f ibb ibe ibf ibg ibi ibo ibr ibs ibt ie- iee ief ieg iei ier ies iet ifb ife iff ifg ifi ifo ifr ifs ift igb ige igf igg igi igo igr igs igt iib iie iif iii iio iir iis iit io- iob ioe iof iog ioi ioo ior ios iot ir- irb ire irf irg iri iro irr irs irt is- isb ise isf isg isi iso isr iss ist itb ite itf itg iti ito its itt o-i ob- obb obe obf obg obi obo obr obs obt oeb oee oef oeg oei oeo oer oes oet of- ofb ofe off ofg ofi ofo ofr ofs oft oge ogf ogg ogi ogo ogs ogt oib oie oif oii oio oir ois oit oo- oob oof oog ooi ooo oor oos oot or- orb ore orf org ori oro orr ors ort os- osb ose osf osg osi oso osr oss ost ot- otb ote otf otg oti oto otr ots ott rbb rbe rbf rbg rbi rbo rbr rbs rbt re- reb ree ref reg rei reo rer res ret rfb rfe rff rfg rfi rfo rfr rfs rft rgb rge rgf rgg rgi rgo rgr rgs rgt rib rie rif rig rii rio rir ris rit rob roe rof rog roi roo ror ros rot rrb rrf rrg rri rrr rrs rrt rsb rse rsf rsg rsi rso rsr rss rst rtb rte rtf rtg rti rto rtr rts rtt sbb sbe sbf sbg sbi sbo sbr sbs sbt se- seb see sef seg sei seo ser ses set sfb sfe sff sfg sfi sfo sfr sfs sft sgb sge sgf sgg sgi sgo sgr sgs sgt sib sie sif sig sii sio sir sis sit sob soe sof sog soi soo sor sos sot sr- srb sre srf srg sri sro srr srs srt ss- ssb sse ssf ssg ssi sso ssr sss sst stb ste stf stg sti sto str sts stt tbb tbe tbf tbg tbi tbo tbr tbs tbt te- teb tee tef teg tei teo ter tes tet tfb tfe tff tfg tfi tfo tfr tfs tft tgb tge tgf tgg tgi tgo tgr tgs tgt tib tie tif tig tii tio tir tis tit to- tob toe tof tog toi too tor tos tot trb tre trf trg tri tro trr trs trt tsb tse tsf tsg tsi tso tsr tss tst ttb tte ttf ttg tti tto ttr tts ttt

-ose bbbb bbbs bbeb bbet bbrg bebb bebe bebi bebo beeb beef beeg beer bees beet befe beff befo beft begg begi bego begs beir beis beit beo- beof beor beos beot bere berg beri bero berr bers bert bes- bese beso bess best bete beti beto bets bett bffs bfgf bfsi bfsr bfts bftt bggs bgst bibb bibe bibi bibo bibs bieb bief bier bies biet biff bifi 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 bobb bobe bobi bobo bobs boee boef boeo boer boes boet bofe boff bofs boge bogg bogi bogo bogs bogt boi- boie boii bois boit boob booe boof boog boor boos boot bor- bore borf borg bori boro borr bors bort bose bosi boso boss bost botb bote boti boto bots bott breb bree bref breg brei breo brer bres bret brie brig brio bris brit brob broe brog broo bror bros brot brrr brrs brsb brsr brst bseb bsee bseg bser bses bset bsff bsfs bsgs bsos bsse bsts btie btob btor btrt btss bttb ebbo ebbr ebbs eber ebes ebis ebit eboe eboo ebor ebos ebro eeee eees eefe eegs eerg eero eers eese eesi eete eets ef-g efbr efeo efes efet effi effs efit efor efsi eft- efts egbe egee eger egfr eggb egge eggi eggo eggs egir egis ego- egoi egor egos egot egre egri egss egte egts eiei eier eies eifs eige eigg eire eirs eise eiso eiss eist eitb eiti